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Dislocation accumulation-induced strength-ductility synergy in TRIP-aided duplex stainless steel Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-12 Jianquan Wan, Binbin He, Xusheng Yang, LingBing Kong, Xiaowei Zuo, Zengbao Jiao
In this study, we investigate the intrinsic mechanism of intensive and progressive transformation-induced plasticity (TRIP) effects and their different strength-ductility synergies using a resource-efficient 15Cr-2Ni duplex stainless steel. The progressive TRIP material exhibits a ductility that is more than twice that of the intensive TRIP material, as well as, a larger product of the ultimate tensile
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A polycrystal plasticity-cellular automaton integrated modeling method for continuous dynamic recrystallization and its application to AA2196 alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-08 Ruxue Liu, Zhiwu Zhang, Guowei Zhou, Zhihong Jia, Dayong Li, Peidong Wu
Continuous dynamic recrystallization usually dominates the microstructural evolution in hot working of aluminum alloys, in which the high-angle grain boundaries of new grains mainly originate from the gradual increase in subgrain misorientation angles. In this work, an integrated computational method is proposed to simulate continuous dynamic recrystallization process of aluminum alloys by coupling
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Atomistic analysis of the mechanisms underlying irradiation-hardening in Fe–Ni–Cr alloys Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-06 A. Ustrzycka, F.J. Dominguez-Gutierrez, W. Chromiński
This work presents a comprehensive examination of the physical mechanisms driving hardening in irradiated face-centered cubic FeNiCr alloys. The evolution of irradiation-induced defects during shear deformation is modeled by atomistic simulations through overlapping cascade simulations, where the nucleation and evolution of dislocation loops is validated by transmission electron microscopy images obtained
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A flexible yield criterion for strength modeling from biaxial compression to biaxial tension Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-05 Lihuang Zheng, Jeong Whan Yoon
Accurate strength modeling from equi-biaxial tension (EBT) to equi-biaxial compression (EBC) is critical for the plastic behavior prediction covering the wide-range of stress triaxiality encountered in sheet metal forming. To date, however, few yield criteria are available that can precisely model the initial yield and hardening behavior under six typical stress states between EBC and EBT, simultaneously
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Automated analysis framework of strain partitioning and deformation mechanisms via multimodal fusion and computer vision Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-03 Ran Ni, Carl J. Boehlert, Ying Zeng, Bo Chen, Saijun Huang, Jiang Zheng, Hao Zhou, Qudong Wang, Dongdi Yin
Simultaneously investigating strain partitioning and the underlying deformation mechanisms for both the grain interior and the grain boundary (GB) is essential for understanding the complex plastic deformation of hexagonal close-packed metals. To this end, an automated analysis framework based on high-resolution digital image correlation (HRDIC) and electron backscatter diffraction (EBSD) data fusion
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Influence of textural variability on plastic response of porous crystal embedded in polycrystalline aggregate: A crystal plasticity study Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-03 Sagar Chandra, Suranjit Kumar, Mahendra K. Samal, Vivek M. Chavan
Damage evolution in polycrystalline aggregates is complicated by the intricate interplay of crystallographic orientation of the porous grain and the surrounding anisotropic matrix. Therefore, formulation of design rules and damage models for polycrystalline materials proves daunting due to relative lack of thorough understanding of the underlying heterogeneity at the mesoscale. This work explores the
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Local element segregation-induced cellular structures and dominant dislocation planar slip enable exceptional strength-ductility synergy in an additively-manufactured CoNiV multicomponent alloy with ageing treatment Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-03 Kefu Gan, Weiying Huang, Wei Zhang, Ruidi Li, Yong Zhang, Weisong Wu, Pengda Niu, Pengfei Wu
We proposed an additively manufactured equiatomic CoNiV multicomponent alloy (MCA) using a conventional laser powder bed fusion (LPBF) method, and an exceptional strength-ductility synergy of the alloy was attained through a simple post-ageing treatment. Pronounced hierarchical microstructures were achieved in our printed alloys, including heterogeneous grain structures, and intragranular cellular
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Near-α titanium alloy dwell load-induced deformation twinning to coordinate the deformation mechanism associated with crack initiation Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-02 Boning Wang, Weidong Zeng, Zibo Zhao, Runchen Jia, Jianwei Xu, Qingjiang Wang
In this study, we identified a specific phenomenon of coordinated deformation of twins in near-α titanium alloys during dwell fatigue (DF). The main crack source regions and internal cracks in the micro-texture region (MTR) and no-MTR samples with inconsistent orientation characteristics were characterized. The results demonstrate that the main cracks in all specimens are aligned with the (0001) basal
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Exceptional strength-ductility synergy in the novel metastable FeCoCrNiVSi high-entropy alloys via tuning the grain size dependency of the transformation-induced plasticity effect Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-02 Mohammad Sajad Mehranpour, Mohammad Javad Sohrabi, Alireza Kalhor, Jae Heung Lee, Ali Heydarinia, Hamed Mirzadeh, Saeed Sadeghpour, Kinga Rodak, Mahmoud Nili-Ahmadabadi, Reza Mahmudi, Hyoung Seop Kim
In-depth knowledge of the coupling between grain refinement and the transformation-induced plasticity (TRIP) effect in metastable alloys is a viable approach for the improvement of strength-ductility synergy, which needs systematic research with consideration of commercial austenitic stainless steels and novel high-entropy alloys (HEAs). Accordingly, in the present work, two Si-containing metastable
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Effect of plastic deformability and fracture behaviour on interfacial toughening mechanism at Fe/Ni interfaces Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-31 Sien Liu, Shoichi Nambu
Fracture at interface causes plastic deformation in the vicinity region. Conventional plastic energy dissipation theory indicates that ductile vicinity toughens the interface by absorbing plastic deformation energy. However, the microstructure in the vicinity directly affects local plastic deformability and fracture behaviour, implying a more complicated toughening mechanism. In this study, the effect
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Excellent strength-ductility synergy assisted by dislocation dipole-induced plasticity in Co-free precipitate-strengthened medium-entropy alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-31 Jinsheng Wang, Jiantao Wang, Bangsheng Wu, Lin Wang, Zhipeng Long, Xing Yu, Long Hou, Xue Fan, Baode Sun, Xi Li
Precipitation strengthening is one of the most effective approaches for developing advanced structural materials with outstanding strength-ductility combinations. However, most compositional designs of precipitate-strengthened HEAs/MEAs compromise the cost-property tradeoff owing to the addition of expensive Co element. In this study, a Co-free FeCrNi-based precipitate-strengthened medium entropy alloy
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An anisotropic damage visco-hyperelastic model for multiaxial stress-strain response and energy dissipation in filled rubber Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-30 Lionel Ogouari, Qiang Guo, Fahmi Zaïri, Thanh-Tam Mai, Kenji Urayama
In this article, we introduce a novel physically-based anisotropic damage visco-hyperelastic model designed to predict the history-dependent inelastic behavior of multiaxially stretched filled rubber. The model integrates both the anisotropic Mullins effect and intrinsic viscosity through the consideration of internal physics, represented by two distinct networks: an elastic ground network and a superimposed
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Atomic-resolution investigations on dislocation-assisted evolution of {10[formula omitted]3} twin boundaries in a magnesium alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-27 Huhu Su, Qun Zu, Zhiqing Yang, Hengqiang Ye
{103} twinning is usually activated at the later stage of plastic deformation of Mg alloys, which is closely relevant to their fracture behavior. Reactions between slip dislocations and twin boundaries (TBs) are suggested to facilitate TB migration, retarding the premature TB cracking. Here, dislocation-assisted evolution of {103} TBs in a Mg alloy subjected to cyclic deformation were studied and modeled
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Study of the dynamic impact spalling of ductile materials based on Gurson-type phase-field model Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-26 Haoyue Han, Tao Wang, Guangyan Huang, Zhanli Liu, Zhuo Zhuang
The formation of void damage and spalling failure in ductile metallic materials under strong impact is a well-established phenomenon. In aerospace and defense technology engineering design, understanding the spalling failure process and related mechanisms is of utmost importance. This paper develops an explicit Gurson-type phase-field model that can simulate the void evolution and spalling damage of
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Nanostructured amorphous Al2O3-ZrO2 (La2O3) ceramics with plastic deformation via interface inducing hierarchical shear bands Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-21 Jianglin Wang, Shuhuai Wang, Yongkang Yang, Shuai Wang, Jie Li, Ziqi Jia, Binghui Ge, Xinghua Su, Anran Guo, Jiachen Liu, Shuxin Niu, Xiqing Xu
Ionic-bonded ceramics are featured by their thermal stability, corrosion resistance, hardness and strength, but their applications are limited by the inherent brittleness. Ceramics are composed of strong chemical bonding and intricate crystal structures, making plastic deformation by dislocation slip highly challenging. A nanostructured amorphous AlO-ZrO ceramic comprising nanoscale amorphous particles
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Interpretation of the stress dip test as a means of characterizing backstress: Experiments and backstress-aided crystal plasticity modeling of polycrystalline tantalum Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-21 Sajjad Izadpanah Najmabad, David Fullwood, Tristan Russell, Marko Knezevic, Michael Miles
Backstresses, associated with certain dislocation arrangements and their inter-dislocation long-range stresses, are known to contribute significantly to deformation response of metals, including kinematic hardening, the Bauschinger effect (BE) and the Hall-Petch effect. Various methods have been employed to quantify these backstresses at the macro-scale. One of these approaches, which has received
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Texture and lattice strain evolution in a pearlitic steel during shear deformation: An in situ synchrotron X-ray diffraction study Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-20 Carlos Samuel Alves da Silva, Breno Rabelo Coutinho Saraiva, Ladislav Novotný, Paulo Willian Carvalho Sarvezuk, Mohammad Masoumi, Cleiton Carvalho Silva, Luis Flávio Gaspar Herculano, Jorge Luiz Cardoso, Hamilton Ferreira Gomes de Abreu, Miloslav Béreš
In-situ synchrotron X-ray diffraction experiments were conducted on the pearlitic steel sample with a carbon content of 0.74% by weight. Specimens were subjected to uniaxial loading that induced shear deformation and two-dimensional diffraction patterns were acquired. The evolution of the lattice microstrain and the strain-resolved crystallographic texture development of both ferrite (α-BCC) and cementite
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The influence of mineral inclusion on the effective strength of rock-like geomaterials Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-17 W.Q. Shen, Y.J. Cao, J.L. Chen, S.Y. Liu, B. Han
The influences of microstructure on the macroscopic mechanical behavior of a composite with a porous matrix reinforced by mineral inclusions are investigated in the present work by both numerical and theoretical methods. The mineral inclusions are embedded at the mesoscopic scale and much bigger than the pores which are located at the microscopic scale. In order to consider the properties of the studied
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Uncovering all possible dislocation locks in face-centered cubic materials Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-16 D. Bajaj, D.L. Chen
Dislocation reactions and locks play an important role in the plastic deformation and mechanical behavior of crystalline materials. Various types of dislocation locks in face-centered cubic (FCC) materials have been reported in the literature pertaining to material-specific molecular-dynamic simulations and high-resolution transmission electron microscopy observations. However, it is unknown how many
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Enhancing plasticity in BCC Mg-Li-Al alloys through controlled precipitation at grain boundaries Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-15 Fan Ji, Tongzheng Xin, Yuhong Zhao, Wenkui Yang, Guoning Bai, Song Tang, Enyu Guo, Mengran Zhou, Qingyu Shi, Luqing Cui, Long-Qing Chen, Binbin He
This study investigates the improvement of plasticity in body-centered cubic magnesium (Mg)-lithium (Li)-aluminum (Al) alloys, crucial for lightweight structural applications. The ternary Mg-Li-Al alloys exhibits high strength but low ductility. Precipitates at grain boundaries in these alloys, linked to reduced plasticity, are examined for their crystal structure and composition. Advanced microscopic
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Crack-tip plasticity mediated grain refinement and its resisting effect on the fatigue short crack growth Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-15 Jianghua Li, Zhiyang Wang, Ningyu Zhang, Tao Shi, Elliot P. Gilbert, Gang Chen, Guian Qian
Fatigue short crack growth governed by the crack-tip plasticity dominates the fatigue life and strength of metallic materials or structural components. Here, for the first time, we discover a new mechanism of resisting fatigue short crack growth by grain refinement near the crack-tip driven by dynamic recrystallization in a Ni-based superalloy during high-cycle fatigue. The local cumulative plastic
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High-temperature creep mechanism of Ti-Ta-Nb-Mo-Zr refractory high-entropy alloys prepared by laser powder bed fusion technology Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-14 Junyi Feng, Binghao Wang, Yintao Zhang, Peilei Zhang, Changxi Liu, Xiaoli Ma, Kuaishe Wang, Lechun Xie, Ning Li, Liqiang Wang
Creep resistance, which is one of the most important deformation modes, is rarely reported for refractory high entropy alloys (RHEAs). The experiment investigated the high-temperature creep mechanism of Ti-Ta-Nb-Mo-Zr RHEA prepared by laser powder bed fusion (LPBF) technology. The high cooling rate of LPBF suppresses most of the elemental segregation, but there are still over-solidified precipitates
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Direct application of elasto-visco-plastic self-consistent crystal plasticity model to U-draw bending and springback of dual-phase high strength steel Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-12 Bohye Jeon, Shin-Yeong Lee, Jinwoo Lee, Youngung Jeong
The incremental elasto-visco-plastic self-consistent polycrystal model (EVPSC) was utilized to describe the constitutive behavior of dual-phase 980 (DP980) steel. A simple baseline modeling approach was chosen: the hardening behavior of each constituent phase in the DP980 steel was described by a simple Voce hardening law without explicitly considering the back stress; and it was assumed that using
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Crystal plasticity-phase–field based analyses of interfacial microstructural evolution during dynamic recrystallization in a dual phase titanium alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-12 Ritam Chatterjee, Aayush Trivedi, S.V.S. Narayana Murty, Alankar Alankar
In this study, an integrated crystal plasticity finite element–phase–field (CPFE–PF) model is developed to examine dynamic recrystallization (DRX) in a dual phase Ti alloy. The CP framework is coupled with PF by updating the free energy density with energy contributions due to plasticity. The evolution of grain boundaries through evolving non-conserved order parameters in the PF model is tracked using
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Strong and ductile low carbon low alloy steels with multiphase bimodal microstructure Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-11 Chenhe Wang, Ran Chen, Chenyang Wang, Yumeng Zhang, Xiaodong Wang, Mingwei Chen
Restrained by the strength-ductility tradeoff, it is still challenging to develop advanced high-strength low carbon low alloy (LCLA) steels with superior strength-ductility combinations and cost-effectiveness to satisfy industry demands. In this study, an innovative 2-cyclic quenching and partitioning (Q&P) heat treatment was developed to produce a novel LCLA steel with the optimized microstructure
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Discerning the duality of H in Mg: H-induced damage and ductility Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-10 Yucheng Ji, Fei Shuang, Zhiyang Ni, Chenyang Yao, Xiao Li, Xiaoqian Fu, Zhanghua Chen, Xiaogang Li, Chaofang Dong
Prone H reduction is considered an important factor in the poor corrosion resistance of Mg and its alloys, while the reduced H simultaneously impacts their mechanical properties whose mechanism is still unclear. It can be experimentally found that the elongation of Mg charged with atomic H is 2.76 % greater than that in air. To reveal the underlying physics, multi-scale modeling combining first-principle
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3D microstructure-based modelling of ductile damage at large plastic strains in an aluminum sheet Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-08 Abhishek Sarmah, Shahryar Asqardoust, Mukesh K Jain, Hui Yuan
Damage initiation in high-strength aluminum alloys with a precipitate-rich matrix is typically particle-driven. In AA7075-O temper, particle cracking and decohesion are the primary void nucleation mechanisms. However, the impact of particle-induced voiding on subsequent void growth and coalescence remains inadequately understood. Given that void growth and coalescence are inherently three-dimensional
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Creep-fatigue damage level evaluation based on the relationship between microstructural evolution and mechanical property degradation Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-08 Li Sun, Xian-Cheng Zhang, Kai-Shang Li, Ji Wang, Shun Tokita, Yutaka S. Sato, Shan-Tung Tu, Run-Zi Wang
Creep-fatigue interaction is identified as a primary failure mode for components operating under high temperatures. As operational durations extend, this interaction not only alters the material's microstructures but also initiates a gradual degradation in mechanical properties, significantly impacting its deformation and damage behaviors. In this work, the dynamic microstructural evolution of GH4169
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Probing the micro-mechanism of precipitate-strengthened alloys with precipitate free zone: An experimental and theoretical study Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-04 Fang Li, Zilong Guo, Geng Chen, Songyi Chen, Kanghua Chen, Changjun Zhu
Precipitate free zone (PFZ) consistently forms near the grain boundaries (GBs) in precipitate-strengthened alloys, significantly weakening the materials because of their intrinsic softness compared to the bulk. However, the influence of PFZ near GBs on deformation mechanism remains largely unrevealed. Here, we systematically investigate the effects of PFZ on the macroscopic mechanical behavior and
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In-situ neutron diffraction study of the strengthening mechanism and deformation behavior of cellular structure in high-entropy alloys by additive manufacturing Int. J. Plasticity (IF 9.4) Pub Date : 2024-08-03 J.Q. Shi, C.P. Huang, S.H. Deng, Z.J. Tan, H.L. Lu, J.Z. Hao, F.R. Shen, Y.F. Jia, J. Chen, Q. Wang, L.H. He, G. Wang
Additively manufacturing alloys by a selective laser melting (SLM) usually generates large temperature gradients and rapidly cooling, which enables a refined microstructure, an elemental segregation and high-density dislocations network to achieve an excellent strength-ductility synergy. In this study, the SLM fabricates FeCoNiAlTi high-entropy alloys (HEAs) with a cellular structure composed of high-density
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Achieving excellent uniform tensile ductility and strength in dislocation-cell-structured high-entropy alloys Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-31 Rui Huang, Lingkun Zhang, Abdukadir Amar, Peter K. Liaw, Tongmin Wang, Tingju Li, Yiping Lu
Body-centered-cubic (BCC) high-entropy alloys (HEAs) encounter significant challenges in obtaining a high uniform tensile ductility (UTD). A dense dislocation-cell (DC) structure is produced in a heterogeneously grained HEA under tensile deformation, resulting from the anchored dislocation motion by grain interior elemental segregation. This fluctuation in elemental concentration is facilitated by
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Chromium gradient stainless steels with simultaneous high strength, ductility, and corrosion-resistant: In-depth study of continuous hardening mechanisms Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-30 Haodi Yang, Zhutian Xu, Linfa Peng, Xinmin Lai, Mingwang Fu
Cr-rich stainless steel sheets exhibit superior corrosion resistance but low ductility, which presents a trade-off between fabrication complexity and performance of the materials in multiple industrial applications, such as marine equipment and microreactors. By transitioning the Cr-rich (30 wt.% Cr) stainless steel component to SS 316 L with a smooth composition gradient in the thickness direction
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Hydrogen effects on the deformation and slip localization in a single crystal austenitic stainless steel Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-24 Fernando D. León-Cázares, Xiaowang Zhou, Brian Kagay, Joshua D. Sugar, Coleman Alleman, Joseph Ronevich, Chris San Marchi
Hydrogen is known to embrittle austenitic stainless steels, which are widely used in high-pressure hydrogen storage and delivery systems, but the mechanisms that lead to such material degradation are still being elucidated. The current work investigates the deformation behavior of single crystal austenitic stainless steel 316L through combined uniaxial tensile testing, characterization and atomistic
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The development of grain resolved stress fields around notch tips in soft-textured zirconium polycrystals: A three-dimensional synchrotron X-ray diffraction study Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-20 Karim Louca, Katherine S. Shanks, Amlan Das, Darren Pagan, Robert Klassen, Hamidreza Abdolvand
Texture, microstructure, and local grain neighbourhood contribute to the development of localized stresses in polycrystals. For hexagonal close-packed materials, crystal's elastic and plastic anisotropy can also be a major contributing factor, yet there is a paucity of experimental studies focusing on the extent of contribution of such parameters on the magnitude of localized stresses at microscales
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Thermodynamic modeling framework with experimental investigation of the large-scale bonded area and local void in Cu-Cu bonding interface for advanced semiconductor packaging Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-18 Sung-Hyun Oh, Hyun-Dong Lee, Jae-Uk Lee, Sung-Ho Park, Won-Seob Cho, Yong-Jin Park, Alexandra Haag, Soichi Watanabe, Marco Arnold, Hoo-Jeong Lee, Eun-Ho Lee
With the increase in computational costs driven by the use of artificial intelligence, enhancing the performance of semiconductor systems while improving efficiency has become an inevitable challenge. Due to the fine pitch limits of micro bumps, bumpless Cu-Cu bonding is emerging as the next-generation core technology. This study aims to analyze the effects of individual temperature and pressure on
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Effects of local strain on the plastic deformation and fracture mechanism of heterogeneous multilayered aluminum Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-18 Yiping Xia, Xin Bai, Huijun Fang, Xuewen Li, Xinbo Ni, He Wu, Kesong Miao, Rengeng Li, Honglan Xie, Hao Wu, Lin Geng, Guohua Fan
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Multi-functional amorphous/crystalline interfaces rendering strong-and-ductile nano-metallic-glass/aluminum composite Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-17 Yuyang Liu, Lei Zhao, Yixuan Hu, Ge Wang, Wangshu Zheng, Tim Vogel, Kolan M. Reddy, Yubin Ke, Qiang Guo
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Understanding plasticity in multiphase quenching & partitioning steels: Insights from crystal plasticity with stress state-dependent martensitic transformation Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-17 Jinheung Park, Yong Hou, Junying Min, Zeran Hou, Heung Nam Han, Binbin He, Myoung-Gyu Lee
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Dual-phase polycrystalline crystal plasticity model revealing the relationship between microstructural characteristics and mechanical properties in additively manufactured maraging steel Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-15 Jakub Mikula, Guglielmo Vastola, Yong-Wei Zhang
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NN-EVP: A physics informed neural network-based elasto-viscoplastic framework for predictions of grain size-aware flow response Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-14 Adnan Eghtesad, Jingye Tan, Jan Niklas Fuhg, Nikolaos Bouklas
We propose a physics informed, neural network-based elasto-viscoplasticity (NN-EVP) constitutive modeling framework for predicting the flow response in metals as a function of underlying grain size. The developed NN-EVP algorithm is based on input convex neural networks as a means to strictly enforce thermodynamic consistency, while allowing high expressivity towards model discovery from limited data
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A dislocation theory-based model for brittle-to-ductile transition in multi-principal element alloys Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-14 Zebin Han, Bin Liu, Qihong Fang, Peter K Liaw, Jia Li
Multi-principal element alloys (MPEAs) have drawn great interest due to their superior mechanical properties compared to the conventional alloys. However, it is unclear in these two aspects: i) how to predict the brittle-to-ductile transition temperature (BDTT) and fracture toughness of MPEAs using theory and model; ii) how to quantify the influences of the complicated alloy composition variation and
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Operative slip systems and their critical resolved shear stresses in η-Fe2Al5 investigated by micropillar compression at room temperature Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-06 Zhenghao Chen, Tsukasa Horie, Xiaofeng Wang, Haruyuki Inui
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A crystal plasticity based strain rate dependent model across an ultra-wide range Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-05 Xiaochuan Sun, Kecheng Zhou, Chuhao Liu, Xiaodan Zhang, Huamiao Wang, Guoliang Wang, Linfa Peng
Numerous studies have investigated the strain rate sensitive behaviors of materials, consistently reporting enhanced stress values and increased dislocation density with rising strain rates. Behind these phenomena lies the intrinsic nature of dislocation activity. In this context, we introduce an analysis method within a crystal-plasticity (CP) framework, incorporating molecular dynamics insights for
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Revealing mechanism of ductility improvement of titanium thin sheet under normal stress at mesoscale from perspective of microstructure evolution Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-02 Haiyang Wang, Gang Chen, Peng Zhang, Chuanjie Wang
Improving the formability of sheet metal is a constant challenge in microforming. In this study, applying normal stresses to the specimen surface is found to be an effective method for improving the ductility of pure titanium sheets. This case only occurs when the normal stress is higher than a critical value. By characterizing the microstructure, it is found that the normal stress induces a change
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Effects of intergranular deformation incompatibility on stress state and fracture initiation at grain boundary: Experiments and crystal plasticity simulations Int. J. Plasticity (IF 9.4) Pub Date : 2024-07-01 Jiawei Chen, Tsuyoshi Furushima
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Slip-discreteness-corrected strain gradient crystal plasticity (SDC-SGCP) theory Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-28 Ran Chen, Guisen Liu, Peidong Wu, Jian Wang, Lei Zhang, Yao Shen
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Effect of dynamic strain ageing on flow stress and critical strain for jerky flow in Al-Mg alloys Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-28 Surajit Samanta, Jyoti Ranjan Sahoo, Sumeet Mishra
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Unveiling the deformation micro-mechanism for mechanical anisotropy of a CoCrFeNi medium entropy alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-26 Qiang Zhang, Shao-Shi Rui, Xianfeng Ma, Ligang Song, Fei Zhu, Yaowu Pei, Jiaxin Wu
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Time-resolved evolution of the deformation mechanisms in a TRIP/TWIP Fe50Mn30Co10Cr10 high entropy during tensile loading probed with synchrotron X-ray diffraction Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-24 J.G. Lopes, J. Shen, E. Maawad, P. Agrawal, N. Schell, R.S. Mishra, J.P. Oliveira
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Dynamic mechanical response and constitutive model of (Ti37.31Zr22.75Be26.39Al4.55Cu9)94Co6 high-entropy bulk metallic glass Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-23 Xianzhe Zhong, Qingming Zhang, Mingzhen Ma, Jing Xie, Mingze Wu, Jiankang Ren
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Microstructural origins of enhanced work hardening and ductility in laser powder-bed fusion 3D-printed AlCoCrFeNi2.1 eutectic high-entropy alloys Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-23 Yinuo Guo, Haijun Su, Hongliang Gao, Zhonglin Shen, Peixin Yang, Yuan Liu, Di Zhao, Zhuo Zhang, Min Guo, Xipeng Tan
Limited tensile ductility usually restricts the practical applications of new classes of high-strength materials in many industrial fields. Therefore, in-depth understanding of the work hardening behavior and its underlying plastic deformation mechanism are critical for the newly developed high-entropy alloys (HEAs). In this work, a geometric atomistic model of face-centered cubic (FCC)/ordered body-centered
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Numerical modeling of shear band effect on Goss grain recrystallization in electrical steels: Crystal plasticity finite element and phase field modeling Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-22 Kyung Mun Min, Hyukjae Lee, Hyung-Don Joo, Heung Nam Han, Myoung-Gyu Lee
This study investigates the effect of shear band evolution on the nucleation of Goss {110}<001> texture during the primary recrystallization of 3.24 wt% Si grain-oriented electrical steel. Nucleation at the early stage of primary recrystallization of the steel is explored both experimentally and numerically. The experimental approach involves cold rolling the steel specimens to obtain a thickness reduction
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Stored energy density solution for TSV-Cu structure deformation under thermal cyclic loading based on PINN Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-22 Hongjiang Qian, Jiebin Shen, Zhiyong Huang, Jian Wang, Qingyun Zhu, Zeshuai Shen, Haidong FAN
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Artificial neural network enhanced plasticity modeling and ductile fracture characterization of grade-1 commercial pure titanium Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-21 Abrar Salam Ebrahim, Qi Zhang, Jinjin Ha
This study primarily aims to develop a robust modeling approach to capture the complex material behavior of CP-Ti, appeared by high anisotropy, differential hardening due to anisotropy evolution, and flow behavior sensitive to strain rate and temperature, using artificial neural networks (ANNs). Plasticity is characterized by uniaxial tension and in-plane biaxial tension tests at temperatures of 0
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Multi-scale annealing twins generate superior ductility in an additively manufactured high-strength medium entropy alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-21 Bojing Guo, Zhongsheng Yang, Qingfeng Wu, Chenbo Xu, Dingcong Cui, Yuhao Jia, Lei Wang, Junjie Li, Zhijun Wang, Xin Lin, Jincheng Wang, Feng He
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Lode-dependent anisotropic-asymmetric yield function for isotropic and anisotropic hardening of pressure-insensitive materials. Part II: Stress invariant-based coupled quadratic and non-quadratic function Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-21 Songchen Wang, Jeong Whan Yoon, Yanshan Lou
This research couples a Lode-dependent anisotropic-asymmetric (LAA) frame (Lou and Yoon, 2023. International Journal of Plasticity, 166, 103,647) with a stress-invariant-based coupled quadratic-non-quadratic (CQN) anisotropic hardening function to analytically characterize the anisotropic-asymmetric hardening of sheet metals under uniaxial tension and uniaxial compression. Experiments are conducted
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An extended gradient damage model for anisotropic fracture Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-19 Liang Xue, Ye Feng, Xiaodan Ren
This paper combines energy decomposition and an extended gradient damage (EGD) model to develop an anisotropic fracture framework with decoupling of tensile and shear cohesive laws. By introducing the shear-normal decomposition in the energy form, the driving force of the damage variable is established within the framework of the EGD model, which is then capable of capturing the traction-separation
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A rational multiscale nonlinear constitutive model for freeze–thaw rocks under triaxial compression Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-18 Wenlin Wu, Lunyang Zhao, Yuanming Lai, Zhaomin Lv, Yanyan Chen, Jiachuan Ran
The stability and durability of rocks in cold regions are significantly impacted by the degradation of mechanical properties caused by freeze–thaw (F–T) environment. In this work, we shall propose a rational multiscale nonlinear constitutive model based on thermodynamics, micromechanics, and fractional calculus theory to describe the complete deformation and failure process of F–T rocks under triaxial
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Effect of loading modes on uniaxial creep-fatigue deformation: A dislocation based viscoplastic constitutive model Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-18 Kai Song, Lianyong Xu, Lei Zhao, Yongdian Han, Ninshu Ma, Kaimeng Wang, Zhibao Ma, Yongchang Liu
A comprehensive investigation was conducted on the stress-strain responses and microstructural evolutions of 9Cr3Co3WCu martensitic steel at 650 ℃ subjected to low cycle fatigue tests, strain-controlled creep-fatigue tests (SNCFTs), and hybrid stress-strain-controlled creep-fatigue tests (HSSCFTs). The creep strain accumulation per cycle in HSSCFTs exhibited three stages: an initial decrease in the
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Double-peak strain hardening behavior of Mg–1.2 wt.%Y alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-06-17 Bo Guan, Li Wang, Yunchang Xin, Peidong Wu, Jing Xu, Xiaoxu Huang, Qing Liu