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Microstructural and mechanical properties of a novel cobalt and titanium free maraging steel for laser powder bed fusion J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Giorgia Lupi, Eleonora Bettini, Faraz Deirmina, Riccardo Casati
Maraging steels are widely used in Additive Manufacturing due to their good processability and outstanding combination of strength and toughness. 18Ni300 is one of the most employed maraging steels. However, it contains cobalt, which has recently been strictly regulated due to its environmental and health hazards, having been classified as carcinogenic. Moreover, this steel contains Ti, showing a high
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Corrigendum to <‘ Corrosion resistance and antibacterial properties of hydrophobic modified Ce-doped micro-arc oxidation coating’> J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Erhui Yang, Ruixia Yang, Wu Wei, Qiufeng Mo, Feiyan Liang, Dong Li, Weizhou Li
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Corrigendum to Effects of the graphene content on mechanical properties and corrosion resistance of aluminum matrix composite [28 (2024) 1900–1906] J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Shuai Yang, Xin Gao, Wentao Li, Yanjin Dai, Jiahao Zhang, Xiaohua Zhang, Hongyan Yue
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Enhancement of mechanical and physical properties of Cu–Ni composites by various contents of Y2O3 reinforcement J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Walaa Abd-Elaziem, Atef Hamada, Tarek Allam, Moustafa M. Mohammed, Mohammad Abd-El Hamid, Sally Samah, Doaa Wasfy, Moustafa A. Darwish, Y Omayma Abd Elguad El-Kady, Sally Elkatatny
The increasing demand for materials possessing enhanced mechanical strength, high thermal conductivity, and excellent electrical properties has grown significantly. Cu-matrix composites, especially Cu– Ni, present a promising candidate to fulfill these demands. In this study, Cu–Ni composites were successfully synthesized using powder metallurgy with various additions (0–1.5 wt%) of Yttria (YO)-reinforcement
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Superplastic deformation behavior of 5 vol% (TiBw + TiCp)/Ti matrix composite sheets with lamellar microstructure J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Qing Zhang, Qihao Lian, Changjiang Zhang, Fan Peng, Jianchao Han, Hong Feng, Hang Li, Jiqiu Qi, Jianhui Yang, Fantao Kong, Yuyong Chen
Superplastic forming is considered a highly efficient technique for shaping intricate components from titanium matrix composites (TMCs). In this work, high-temperature TMCs with 5 vol% (TiB + TiC) reinforcements underwent superplastic tensile tests at various temperatures and strain rates. The results demonstrated that at all deformation temperatures (900 °C–1050 °C) and strain rates (5 × 10 s to 10
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Inclined θ′ precipitates with terraced Cu/Mn-rich multilayers in Al–Cu alloys J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Guodong Niu, Zhongming Zhuo, Jian Mao
In this work, an inclined θ′ morphology with terraced Cu/Mn-rich multilayers is observed in Al–Cu based alloys. The GPA (geometric phase analysis) results indicate that the inclined (∼3.1°) θ′ precipitates could induce significant lattice distortion at the interface. The chemical analysis results demonstrate that Mn atoms could get into the coherent (001)//(001) interface with large misfit strains
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The effect of network cementite dissolution on the nucleation and growth of prior austenite grains in high carbon low alloy steels J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Dezhi Li, Xianming Zhao, Hongliang Zhang, Jie Li, Huaibin Han
The state of austenite grains has an essential role in the microstructure transformation and mechanical properties of alloy steel during heat treatment or subsequent hot working. The initial microstructure of alloy steel is inseparable from the nucleation and growth of austenite grains. Hence, in this work, high carbon low alloy steel with the initial microstructure of lamellar pearlite and grain boundary
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Research of water influence on macro and homogenized fracture toughness, brittleness and relationship between different mechanical properties of Longmaxi shale outcrop J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Keming Gu, Zhengfu Ning, Ying Kang
For better understanding the water influence on shale mechanical characteristics, chip, column, powder and semi-circular bend four types of shale sample from Longmaxi outcrop processed to 5 different moisture degree, are prepared to separately conduct SEM observation for in-situ location after processing, AFM test and nanoindentation for data of fracture toughness calculation, uniaxial/triaxial compression
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Investigation on microstructure and high-temperature wear properties of high-speed laser cladding Inconel 625 alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Xiaoming Wang, Xuechong Ren, Yanpeng Xue, Benli Luan
Inconel 625 alloy cladding layer was prepared by high-speed laser cladding (HLC) on Q245R steel substrate to improve the service performance of the structural components in the power industry in this work. A comprehensive study on the HLC Inconel 625 coating with different scanning speeds was conducted utilizing Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Laser Scanning
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In-situ mechanical and microstructural characterization of miniaturized Al-Mg-Sc-Zr and AlSi10Mg specimens processed by laser powder-bed fusion (PBF-LB) J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Laura Cordova, Ton Bor, Eric Macía Rodríguez, Tiedo Tinga, Mónica Campos
Manufacturing through powder-bed fusion laser-beam (PBF-LB) enables innovative part design strategies, facilitating weight reduction, and capitalizing on the metallurgical conditions developed during the manufacturing of designed alloys. Consequently, Al-based light alloys hold enormous potential for reducing fuel consumption in the transport industry. Fabricating such small features has a significant
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Zr/Hf-containing metallocene-based ceramic precursors J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-16 Caiyan Wang, Lei Shi, Zihao Qiao, Weilong Chen, Zhengwen Li, Bin Li
Polymer-derived-ceramic (PDC) route is an excellent strategy to tailor components at the molecular level, while existing synthetic methods face various problems such as complex preparation, multi-step reaction, and high conversion temperature, etc. Here, we propose an approach to prepare Zr-, Hf-, or Zr/Hf-containing metallocene-based ceramic precursors, which are constructed by the alkylation reaction
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Novel high Nitrogen austenitic stainless steels: From high-throughput screening to experimental validation and properties relationship J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Victor Hugo Mafra Monfredo Ferreira, Francisco Gil Coury, Diego de Araújo Santana, Guilherme Yuuki Koga
The quest for affordable and price-stable alternatives for nickel as the main austenitizing alloying element is pushing the stainless steel industries to develop new types of Ni-lean austenitic stainless steels. This work focuses on the challenges of designing austenitic stainless steels with appreciable nitrogen content using computational methods, which can still be produced at 1 atm N pressure and
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Synchronously enhanced printability and properties of additively manufactured nickel-based superalloys via alloying minor Sc J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Liming Tan, Xiaoqiong Ouyang, Lin Ye, Heng Dong, Xiangyou Xiao, Jie Su, Lan Huang, Feng Liu
As major forming elements of γ′ strengthening phase, Al and Ti are critical for achieving superior properties of Ni-based superalloy. However, Al + Ti over 6 wt% leads to poor printability and cracking during additive manufacturing. In this work, the printability and properties of a nickel-based superalloy with Al + Ti reaching 7 wt% is synchronously improved via alloying minor Sc, the mechanism behind
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New structural features and pinning-evolved coercivity mechanism: A potential route for developing high coercivities in anisotropic Sm-Fe-N material J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Liming Ye, Fengqing Wang, Yang Liu, Haoran Zhou, Lei Liu, Yong Ding, Yingli Sun, Aru Yan
Sm-Fe-N material holds immense promise as new material for developing next generation permanent magnets. However, the achievement of high coercivity in this material remains a big challenge, and moreover new coercivity theories beyond the commonly considered nucleation-type mechanism needs exploration. This study describes both the yielding of anisotropic Sm-Fe-N powders with high coercivities and
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Microstructure and corrosion performance of CoCrFeNiSix coatings deposited by magnetron sputtering at various negative bias voltages J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Xuehui Hao, Changzheng Wang, Hui Chen, Shuai Guo, Jie Ma, Xingchuan Zhao
In this work, CoCrFeNiSi coatings were fabricated by magnetron sputtering at the negative bias voltage ranging from 0 to 100 V. The effect of negative bias voltage on the composition, microstructure and corrosion performance was studied. The results show that all CoCrFeNiSi coatings consisted of amorphous and nanocrystalline FCC phases. However, the ratio of both amorphous/nanocrystalline phases and
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SiO2 aerogel coating with organic montmorillonite compounded with flame retardants: A strategy for design of a multifunctional thermal barrier coating J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Yu-Wei Liu, Zhi-Sheng Nong, Tian-Nan Man, Shao-Wei Lu, Li-Hui Dong
To improve the thermal barrier properties of epoxy resin coatings, a composite waterborne aerogel multifunctional coating that possesses both mechanical properties and controllable barrier ability was prepared in this study. This coating incorporates granular silica aerogel, organic montmorillonite, and two flame retardants: aluminum hydroxide (ATH) and magnesium hydroxide (MH). The results showed
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Diffusion bonding of nickel-based powder metallurgy superalloy FGH98 with pure nickel interlayer J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Wei Guo, Jingru Xin, Ding Hao, Yana Ma, Jiangtao Xiong, Jinglong Li, Qinghua Feng
FGH98 powder metallurgy superalloy were successfully bonded via diffusion bonding technique with pure Ni interlayer. It was indicated that adding the Ni interlayer can significantly reduce joint defects, promote elements diffusion, and improve the bonding rate comparing with direct diffusion bonded joint. The typical joint is clearly divided into the IZ with larger volume dendritic γ′ phase and the
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A comparative study on microstructure and mechanical properties of wire-arc directed energy deposited Al–Zn–Mg–Cu alloy based on the cold metal transfer technology J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-15 Yuwen Wang, Ji Chen, Maoai Chen, Hao Su, Ran Zong, Dongsheng Wu, Hisaya Komen, Manabu Tanaka, Chuansong Wu
Wire-arc directed energy deposition (DED) of Al–Zn–Mg–Cu alloy faced a tough challenge because of the occurrence of crack and pore defects caused by the high content of alloying elements. Three cold metal transfer (CMT) arc modes were studied to fabricate Al–Zn–Mg–Cu alloy components via the wire-arc DED process, with the aim of optimizing the deposition process and revealing the action mechanism of
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Grain boundary engineering using self-organized high-index twins produced by twin-twin reactions in β-Ti alloys: A phase field study J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-14 Yipeng Gao, Cheng Kong, Chunfeng Du, Jiyuan Ding, Haipeng Li, Yuchao Song, Heng-Nan Liang, Hui-Yuan Wang
Introducing coherent twin boundaries is an effective way to develop submicron/nano-sized grains with improved thermal stability in polycrystals, which exhibit enhanced mechanical properties of metals, such as high strength, high hardness and high fracture toughness. However, crystalline defects, such as dislocations and disclinations, usually arise at twin boundary junctions, which lead to local stress
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Hypergravity-exacerbated cracking in high-speed rotating 7075 aluminum blades J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-14 Yilin Jiao, Fafa Yang, Haoqi Niu, Lilin Xie, Yadi Zhai, Ang Li, Yanhui Chen
On Earth, high-speed rotating blades and rotors experience hypergravity, which is mainly derived from centrifugal force. Aluminum alloys are widely used in high-speed rotating machines. In particular, 7075 aluminum has excellent properties, providing it with great potential for application in high-temperature rotating parts. In this work, the cracking behavior and microstructural evolution characteristics
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A multiscale study on the microstructure and hardening models of the irradiation defects on reactor pressure vessel steels: Modelling and experiment J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-14 Pan-dong Lin, Jun-feng Nie, Wen-dong Cui, Lei He, Yu-peng Lu, Shu-gang Cui
Irradiation defects are known to impede the dislocation motion in irradiated reactor pressure vessel (RPV) steels. However, consistent experimental studies of the respective irradiation defects and relevant theoretical studies of the interaction mechanism and hardening model are still lacking. In this study, the microstructure and irradiation-induced hardening of RPV steels are investigated using transmission
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Effects of oscillating frequency on keyhole stability and porosity inhibition in high-power laser-arc hybrid welding of 10-mm-thick 6082 aluminum alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-14 Yishuai Jiang, Yunfei Meng, Hui Chen, Xu Wu, Ailin Deng
Keyhole instability and high porosity are prone to occur in laser-arc hybrid welding (LAHW) with an increase in aluminum alloy thickness. In this study, a high-power laser up to 8.0 kW at different oscillating frequencies (f) was used to achieve acceptable hybrid welding of a 10-mm-thick 6082 aluminum alloy. According to the observations of the laser keyhole from a high-speed camera, increasing f from
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Preparation, bubbles evolution, and compressive mechanical properties of copper-coated carbon fibers/aluminum foam sandwich panels J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-14 Qiang Gao, Xixi Su, Zhanhao Feng, Peng Huang, Zhenxiong Wei, Xi Sun, Guoyin Zu
As widely used energy-absorbing protective materials, the application of aluminum foam sandwich (AFS) panels remains constrained by the inherently low mechanical properties of the foam core. The incorporation of copper-coated carbon fibers (C) has proven to be effective in improving the mechanical properties of aluminum foam. Yet, the understanding of its foaming process and microstructure is still
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Evaluation of the effects of the addition of Al, Ti, and Zr on microstructure, carburization and creep resistance of the HPNb alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Paulo Moura Bispo de Santana, Carlos Alberto Della Rovere, Elaine Christine de Magalhães Cabral Albuquerque, Carlos Alberto Caldas de Souza
The process of thermally cracking hydrocarbons and steam in pyrolysis furnaces to obtain ethylene is essential in the production chain of products relevant to our daily lives, such as fertilizers, polymers, pharmaceuticals, etc. The operating temperature of these furnaces is limited by the occurrence of carburization and/or creep in the metallic alloy used. The objective of this work was to investigate
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Comparative study of CaO and CaCO3 on microstructure refinement, mechanical and corrosion resistance of AM60 alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Qi-feng Li, Wei Qiu, Wen Xie, Yan-jie Ren, Jian Chen, Mao-hai Yao, Tang-qing Wu, Li-bo Zhou, Wei Li, Wei Chen, Xiang-jun Li
Grain refinement is a crucial technique for enhancing the mechanical properties and corrosion resistance of magnesium alloys. In this study, the addition of 0.3 wt% CaO and 0.3 wt% CaCO successfully refined the AM60 alloy, resulting in a significant reduction in the average grain size from 326 μm to 96 μm (when adding CaCO). The refined grain size of the as-cast AM60 alloy led to an increase in both
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The enhanced high-temperature oxidation resistance of additively manufactured GH4169 by adding small amounts of 304L J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Yajing Li, Hailong Dai, Shuyao Zhang, Bo Li, Yunran Ma, Chengyu Bao, Xu Chen, Fuzhen Xuan
Enhancing the high-temperature oxidation resistance of nickel-based alloys is critical for expanding their industrial applications. Herein, we report a novel strategy for enhancing the high-temperature oxidation resistance of the GH4169 nickel-based alloy by adding small amounts of 304L stainless steel using selective laser melting technology. The oxidation property of GH4169 with various 304L additions
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Characterization of V-containing black plasma electrolytic oxide coatings on aluminium alloy: Impact of base electrolytes J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Jun Liang, Zhenjun Peng, Xuejun Cui, Runxia Li, Biao Wang
Black oxide coatings on 6061 Al alloy were produced by plasma electrolytic oxidation (PEO) process in silicate- and phosphate-rich base electrolytes with addition of ammonium metavanadate (NHVO), respectively. The characteristics of PEO processes and resulting coatings were investigated. The thermal control properties of the coatings were measured. The corrosion protection performances of the coatings
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Influence of different cycle strain amplitudes on the microstructure and properties of 2024 aluminum alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Ye Wang, Hai Li, Yuyang Han, Cong Zhu, Xiaotong Gu, Mengqi Li, Zhixiu Wang
The effect of varying strain amplitudes on the tensile properties and microstructure of aluminum alloy 2024 after a solution treatment (ST) of 495 °C for 1 h followed by cyclic strengthening at room temperature in the presence of various strain amplitudes is methodically investigated. Cyclic strain treatment substantially leads to the enhancement of the strength and plasticity of the alloy. Different
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Investigation of the effect of SiC additions on the high-temperature oxidation behavior of combustion-synthesized MoSi2 J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Alireza Sedighi, Mandana Adeli, Mansour Soltanieh
In this study, the effect of the weight percentage of SiC on the high-temperature oxidation behavior of MoSi-Xwt. % SiC composite (X = 0, 10, 20, 30) was studied. The composites were produced from elemental powder compacts of molybdenum, silicon and carbon (where applicable) by combustion synthesis and subsequent sintering method. Additionally, a series of each synthesized powder was mixed with 5 wt%
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Coupling strengthening mechanism of precipitate and solute atoms in edge dislocation motion of Al-Mg-Si alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-13 Shining Kong, Zelong Yu, Xinyu Zhang, Zhao Zhang
To investigate the coupling strengthening mechanism of precipitate and Cu solute atoms in Al-Mg-Si alloy, the molecular dynamics model of edge dislocation motion interacted with precipitate and Cu solute atoms was established. The dislocation length is increased in the dislocation-precipitate interaction due to the bending and bowing of the edge dislocation around the precipitate. No coupling between
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Friction surfacing of AA6061 on AA5083 aluminum alloy with adding 316 stainless steel powders: Effect of volume fraction of reinforcements J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Yinwei Wang, Moslem Paidar, Reza Eslami Frasani, Hossein Ahmadi Danesh-Ashtiani, Sadeq Salman, Sadok Mehrez, Hongwei Zhang
The present work aims to study the effect of the 316 stainless steel reinforcement volume fraction during friction surfacing of AA6061 on the AA5083 alloy by tool's rotation, traverse speed, and feeding rate of 1000 rpm, 150 mm/min, and 100 mm/min to improve the tribological and mechanical behaviors of deposited layers. It was found that a fully bonded interface without any void or defect at the bonding
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Nickel-aluminide cladding on a steel substrate using dual wire arc additive manufacturing J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Navid Samadi, Hamed Jamshidi Aval
In this study the nickel-aluminide intermetallic cladded on AISI 1010 steed using dual wire arc process. The nickel-aluminide is fabricated in situ through an arc provided by a gas tungsten arc welding process and changing aluminum wire feeding rate. The research findings reveal that at a constant Ni wire feeding rate of 450 mm/min, by decreasing the Al wire feeding rate lower than 800 mm/min, the
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Effect of hot isostatic pressing and heat treatment on the evolution of precipitated phase and mechanical properties of GH3230 superalloy fabricated via selective laser melting J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Zhanwei Yuan, Aoze Chen, Lei Xue, Rui Ma, Jie Bai, Junchao Zheng, Xujing Bai, Jie Zheng, Shengyong Mu, Lei Zhang
In this paper, the microstructure and mechanical properties of SLM-GH3230 superalloy treated by different post treatments (single hot isostatic pressing and heat treatments after hot isostatic pressing) were studied. The micro-morphologies show that the grains along building direction after HIP + HT are mainly columnar grains, which is consistent to that after single HIP. The granular precipitates
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Achieving superior grain refinement efficiency for Al–Si casting alloys through a novel Al–La–B grain refiner J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Qiuju Zheng, Bin Zhang, Tian Chen, Jing Wu
Conventional Al–Ti–B and Al–Ti–C refiners fail to refine Al–Si casting alloys with high Si content due to the well-known “Si-poisoning” effect. Developing a novel grain refiner with superior grain refinement efficiency for Al–Si casting alloys is the research focus in recent years. In this work, a superior anti Si-poisoning α-Al grain refiner Al–2La–1B alloy with fine LaB particles was successfully
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Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si–Ca–Ba alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Shuang Liu, Fan Yang, Lixia Liu, Jian Wang, Jun Peng, Fang Zhang, Shengli An
20CrMnTi steel is widely used in the gear manufacturing field of engineering machinery. The addition of Ti element to steel can effectively improve its low-temperature impact toughness and enhance its mechanical properties. However, during the smelting process of 20CrMnTi, large-sized TiN inclusions are inevitably formed in the steel, which affects its service performance improvement. This paper focuses
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High-resolution simulating of grain substructure in cold rolling and its effects on primary recrystallization in annealing of ferritic stainless steel J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Kangjie Song, Haochen Ding, Chi Zhang, Liwen Zhang, Guanyu Deng, Huaibei Zheng
In this study, an integrated crystal plasticity and cellular automaton (CA) model has been developed and employed to investigate the processes of cold rolling and annealing in ferritic stainless steel. Crystal plasticity simulates the deformation microstructure, deformation texture and corresponding dislocation density distribution in the cold rolled ferritic stainless steel. Meanwhile, CA predicts
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Architectural and component design of CNTs/Al hierarchical composite for enhanced mechanical/thermal properties J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Mingjie Shen, Zhen Hao, JiangNan Song, Meng An, Tao Ying, Xiangzhen Xue, Yang Gao, Zongyang Yang
This study aims to fabricate heterogeneous CNTs/Al composites with a hierarchical structure using powder metallurgy techniques. The hierarchical composites are composed of alternating layers with and without CNTs. Tensile testing of the as-sintered sample, with a 3.5 mm width and containing 0.5 wt% CNTs, revealed an ultimate tensile strength of 249 MPa and 11.8 % elongation to failure. This shows an
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Augmenting magnetic properties: Ectopic reconstruction of insulation layer in soft magnetic composites via coating-doping method J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Rui Wang, Yang Li, Kaixuan Li, Yue Qiu, Zhaoyang Wu, Hui Kong
The doping of carbonyl iron powders (CIPs) with small particle sizes and high ferromagnetism can effectively enhance the magnetic conductivity of soft magnetic composites (SMCs). However, the poor fluidity and the direct contact between CIPs will increase the effective eddy current size, resulting in increased core loss. To address the negative effects, the ectopic reconstruction of CaCO insulation
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Study on the hot deformation behavior and microstructure evolution of as-forged GH3625 alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Huan Gao, Bing Zhang, Yu Fan, Zhijuan Zhang, Hongqiang Nan, Tianli Zhao, Zhiqiang Lei, Jun Cai, Kuaishe Wang
GH3625 alloy is widely used in aviation, nuclear power and other fields of hot section components. However, the high alloying level, significant deformation resistance, and narrow hot working window of the alloy bring great challenge to the plastic deformation of the alloy. The hot deformation behavior and microstructure evolution of as-forged GH3625 alloy were studied by hot compression tests with
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An experimental study of the effect of Ag, Cu, Li, Mg, Ni, Ti, Sc, Zr on grain refining in binary and multicomponent Al-based alloys J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Ehab Samuel, Yasser Zedan, Agnes M. Samuel, Fawzy H. Samuel
The objective of the current work is to establish the conventional mechanisms of grain refining, and the effect of the refiner-modifier interaction in Al-based alloys on the resultant grain refining obtained. The different castings were carried out in preheated metallic molds with solidification rates of around 0.15 °C/s and 7 °C/s. As the nucleation sites (AlTi) change in composition depending on
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Unveiling high performance insulating properties of epoxy- oyster shell nanoparticles composites for high-voltage applications J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 A.O. Ezzat, V.S. Aigbodion, I.E. Ohiemi, H.A. Al-Lohedan
Polymeric materials are progressively taking the place of ceramic materials in insulators for high voltage transmission as a result of their disadvantages, such as their high weight, weak mechanical strength, and challenging manufacturing processes. In most situations, polymeric insulators are preferable to ceramic insulators, although they can have drawbacks such low operating temperature and toughness
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Mathematical analysis and process optimization of wire and arc additive manufactured Ti6Al4V ELI alloy with in-situ rolling J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-12 Youheng Fu, Mingbo Zhang, Xi Chen, Hao Song, Jianwu Huang, Hang Lin, Wenzheng Zhai, Guilan Wang
The combination of wire and arc additive manufacturing (WAAM) and rolling offer the advantages of high efficiency, low cost, and fine grain, making it a viable option for the rapid production of aerospace thin-wall forgings using titanium alloy. However, the interplay between various factors such as temperature gradient, deformation force, and prior pass morphology directly influence the morphology
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Novel role of thermomechanical grain boundary engineering in the microstructure evolution of austenitic stainless steel J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Hesam Safari, Ahmad Rezaeian, Fathallah Karimzadeh
The effect of special grain boundary development via the grain boundary engineering process (GBE) was explored in a bimodal microstructured 316L austenitic stainless steel with an average grain size of 1.92 μm. The GBE process was carried out by the rolling-annealing method via two routes of low and medium applied strain, followed by a short annealing period in a single-step and iterative manner. The
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Characterization of FeCoNiCr high-entropy alloys manufactured by powder metallurgy technique J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Ali Basem, Mohamed Ali Hassan, Omayma A. Elkady, Y.A. El-Shekeil, Samir Bendoukha, Nabil Barhoumi, H.A. Refaey, Ammar Elsheikh
This study explores the phase constitution, thermal behavior, magnetic characteristics, and mechanical properties of FeCoNiCrCux high-entropy alloys (HEAs) produced via powder metallurgy, focusing on varying copper ratios (0–20%). The investigation seeks to understand how the introduction of copper influences the phase composition and properties of FeCoNiCr HEAs, particularly regarding changes in phase
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The study on the effect of various tool wear indicators on the machining of MMCs J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Zhigao Chen, Fei Ding, Zhichao Zhang, Dongyun Gu, Qiuyan Liao, Mingjun Chen, Bo Wang
This paper aims to conduct tool wear experiments on cutting SiCp/Al composite materials, and methodically reveal the wear evolution of PCD tools in some detail. Based on the experiments, five-tool wear schemes are rationally developed, including free from wear, crater wear, flank wear, combined crater and flank wear, and edge blunting. The accurate equivalent homogeneous material (EHM) turning simulation
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Morphological, chemical and mechanical properties of hybrid polyester composites reinforced with bamboo fibers and kaolin waste J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Alessandro J.G. dos Santos, Mauricio M. Ribeiro, Alessandro de C. Corrêa, Jean da S. Rodrigues, Douglas S. Silva, Raí F.P. Junio, Sergio N. Monteiro
This article presents a study on the use of natural fibers and kaolin waste as sustainable alternatives in the manufacture of polymer matrix composites. In the present research, isophthalic unsaturated polyester matrix composites were manufactured in association with bamboo fibers () and kaolin waste. The kaolin waste was used with a particle size of 50–100 MESH and the fibers in lengths of 15 mm and
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Effect of Mo/Nb ratio variations on the microstructure and cryogenic impact toughness of NiCrMo deposited metals J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Zhengxin Qi, Yuntao Li, Yanchang Qi, Zhiling Tian, Chengyong Ma
Effects of varying the Mo/Nb (in weight percent) ratio in ENiCrMo-6-deposited metals on the microstructure and cryogenic impact toughness of the metals were investigated. When the Mo/Nb ratio decreased from 6.09 to 3.28, the Nb-rich phase on the grain boundaries was transformed from un-continuous precipitation to continuous precipitation, the area fraction and average size of the precipitates within
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Yttrium effect on 475 °C brittleness of Fe–13Cr–6Al–2Mo-0.5Nb-0.15Zr alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Chundong Wang, Jie Pan, Zhi Yang, Jiwei Lin, Ping Cao, Cheng Su, Cong Li, Meiyi Yao, Xueshan Xiao
The effect of yttrium on the 475 °C brittleness and microstructure stability of Fe–13Cr–6Al–2Mo-0.5Nb-0.15Zr alloy after long-term aging at 475 °C has been investigated. At the early stage of aging, the nanoscale metastable transition phase precipitates in large quantities. After aging for 10,000 h, the nanophase in the Y-free alloy has completely disappeared, and only a great deal of granular Laves
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Wire-arc additive manufacturing of Mg-Gd-Y-Zn-Zr alloy fabricated by cold metal transfer heat source: Processing, microstructure, and mechanical properties J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Wenzhe Yang, Haiou Yang, Kuitong Yang, Zihong Wang, Xinghua Wang, Chenghui Hu, Xin Lin
With the development of aerospace, Mg-Gd-Y-Zn-Zr alloy as a high-performance light alloy has attracted much attention. In this paper, the Mg-8.8Gd-3.9Y-0.85Zn-0.45Zr (wt%, GWZ941) alloy single-pass multilayer components fabricated by cold metal transfer wire and arc additive manufacturing (CMT-WAAM) in CMT mode, CMT-P mode and CMT-Advance mode. Studying the effects of the three CMT characteristics
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Electrochemical and surface analysis investigation of corrosion inhibition performance: 6-Thioguanine, benzotriazole, and phosphate salt on simulated patinas of bronze relics J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Xiaodong Li, Xu Zhu, Ailing Feng, Meimei An, Peitao Liu, Yanqing Zu
Organic heterocyclic corrosion inhibitors play a crucial role in the non-destructive protection of excavated bronze relics exposed to the atmosphere. However, the current selection of corrosion inhibitors, additives, and dosage requires further investigation. This study involves a comprehensive preparation simulation of electrode materials and atmospheric corrosion electrolytes. The corrosion inhibition
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Enhancing the strength-ductility synergy in hot-forged Fe50Mn30Co10Cr10 high entropy alloy (HEA) through carbon additions J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-11 Naqash Ali, Liqiang Zhang, Liu Dongming, Hongwei Zhou, Kiran Sanaullah, Chaojie Zhang, Yi Nian, Jinjun Cheng
In this work, we systematically investigated the effect of carbon additions on the microstructure and room temperature mechanical properties of hot-forged FeMnCoCr HEA. The different carbon contents were introduced to FeMnCoCrC (x = 1, 2.5, 6 at.%, hereinafter, referred as C, C and C, respectively) HEAs to enhance the strength-ductility synergy by triggering the multiple strengthening mechanisms. The
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Layered co-continuous structure in bone scaffold fabricated by laser additive manufacturing for enhancing electro-responsive shape memory properties J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-10 Cijun Shuai, Wentao Xu, Haofan He, Feng Yang, Jinglin Liu, Pei Feng
Porous scaffold based on electro-responsive shape memory polymers (ESMPs) possesses great potential applications in minimally invasive surgery for bone defect repair because it provides the ability for remote control and internal heating. However, it's difficult to obtain co-continuous structure in bone scaffold for achieving excellent electro-responsive shape memory properties. In this study, layered
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Wetting kinetics of TixMo1-xC in molten Fe and its influence on bicontinuous TixMo1-xC/Fe composite mechanics: Experimental, DFT and ML studies J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-09 Zhexuan Zhang, Yang Zhou, Ranran Cai, Runfeng Li, Shibo Li, Zhenying Huang
The TiMoC precursor was rendered porous through PUF foam replication using a slurry of TiC and Mo powders. Mo was incorporated to increase the strength of pressureless sintering (PS). The precursor served as a reinforcement for bicontinuous TiMoC/Fe composites through pressureless infiltration. The interaction between Fe and TiMoC was studied through experimental and theoretical analyses, establishing
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High stability and high corrosion resistance of a class of Co–Cr–Mo–Nb–B high-entropy metallic glasses J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-09 Yating Zhou, Tuo Wang
In this study, we have developed a class of new Co–Cr–Mo–Nb–B high-entropy metallic glass alloys with high stability and high corrosion resistance. It was found that for CoCrMoNbB metallic glass, the glass transition temperature reached to 1058 K, and the initial crystallization temperature of CoCrMoNbB metallic glass was as high as 1132 K. There is a large hardness of 18.1 GPa and Young's modulus
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Additive manufacturing-induced anisotropy in damping performance of a dual-phase high-entropy alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-09 Yadong Li, Yunjian Bai, Zishang Liu, Quanyu Jiang, Kun Zhang, Bingchen Wei
Additive manufacturing (AM) can endow materials with specific microstructures, inducing anisotropy. In this study, we employed the AM technique to fabricate a dual-phase high-entropy alloy (HEA) and evaluated the damping properties of this alloy cut parallel and perpendicular to the building direction (denoted as BD and TD, respectively) while considering strain amplitude and temperature. Results reveal
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Corrigendum to “Proposition of a robot-based free diamond abrasive grinding process and its influence on the characteristics of plasma-sprayed 8YSZ coatings” [J Mater Res Technol 26, September–October 2023, pages 4423–4435] J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-08 Tingyang Chen, Shujuan Dong, Chunming Deng, Xiaofeng Zhang, Jianing Jiang, Longhui Deng, Zhenhua Cai, Xueqiang Cao
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Microstructure-properties relation of hydrostatically extruded absorbable zinc alloys: Effect of Mg and Cu addition on corrosion properties and biocompatibility J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-08 Anna Jarzębska, Magdalena Gieleciak, Agnieszka Bigos, Łukasz Maj, Klaudia Trembecka-Wójciga, Monika Bugajska, Magdalena Bieda, Łukasz Rogal, Jakub Kawałko, Sylwia Przybysz, Daniel Wojtas, Aldona Mzyk, Romana Schirhagl
Pure Zn is well-known for its appropriate corrosion rate, making it suitable for use as future absorbable implants. Yet, it suffers from insufficient strength, thus, both plastic deformation and alloying are required. Hydrostatic extrusion has proven to be an efficient technique, providing high mechanical properties for zinc alloys. However, its effect on degradation rate and biocompatibility of Zn
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Synergistic effect of TiN ceramic particle and grain refinement in enhancing the higher performance Ti–V–Al based shape memory alloy J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-08 Wei Liu, Yunfei Wang, Xinjian Cao, Xiao Liu, Bin Sun, Haizhen Wang, Xiaoyang Yi, Xianglong Meng, Zhiyong Gao
In the present study, in-situ TiN ceramic particles were introduced into Ti–V–Al based shape memory alloys to optimize mechanical properties and friction resistance. The results revealed that increasing the TiN content resulted in the transition from α" to β phase, and led to a reduction in the martensitic transformation temperature. Additionally, the TiN ceramic particles were found to significantly
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The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-08 Shihao Zhang, Mengyao Jia, Wei Wang, Juan Hou, Wenjun Kuang
The corrosion resistance of laser powder bed fusion (LPBF) 304L stainless steel (SS) in 3.5 wt% NaCl solution was evaluated at room temperature through potentiodynamic polarization and electrochemical impedance spectroscopy tests. For electropolished samples, annealing at 1200 °C slightly enhanced the corrosion resistance due to changes in crystal orientation and inclusion composition, and reduced
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Enhancing the surface finish and corrosion resistance of laser powder bed fusion NiTi surfaces through chemical polishing J. Mater. Res. Technol. (IF 6.4) Pub Date : 2024-03-07 Zhenglei Yu, Bo Liu, Shengnan Yu, Haojie Chi, Zhiying Wang, Hongliang Yang, Zezhou Xu, Zhihui Zhang, Yunting Guo, Luquan Ren
NiTi alloys exhibit significant potential for biological applications, and the fabrication of customized NiTi geometries is greatly facilitated by the use of laser powder bed fusion (LPBF) processing. However, there are several challenges with post-processing NiTi specimens processed via LPBF, such as uneven, loosely packed, weakly corrosive surfaces, and low dimensional precision. Therefore, solving