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Wetting kinetics and corrosion of CMAS and CMAS-NaCl to plasma-sprayed YSZ and Al2O3-YSZ thermal barrier coatings Corros. Sci. (IF 8.3) Pub Date : 2024-04-10 Yongang Zhang, Mengfan Dou, Wei Gao, Jiasen Han, Dongting Wu, Yong Zou
Transient wetting and corrosion behavior of CMAS and CMAS-NaCl on 7YSZ and AlO-YSZ TBCs were investigated at 1250 ℃. NaCl addition decreased the melting point and viscosity of CMAS while improving the dynamic wettability during melt spreading. This intensified melt interactions with TBCs, facilitating CMAS infiltration and coating degradation. The AlO addition to coatings promoted interfacial reactions
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Electrodeposited Ti3C2Tx MXene composite coating toward superior surface protection on aluminum alloy in PEMFC environments Corros. Sci. (IF 8.3) Pub Date : 2024-04-07 Tiange Wang, Huaijie Cao, Xiaoqing Ma, Xixun Shen, Yulin Min, Qunjie Xu
A thin dodecyltrimethoxysilane/TiCT MXene coating is constructed on aluminum alloy by a green electrodeposition approach. With a combination of dodecyltrimethoxysilane and TiCT, the coating exhibits a low corrosion current density (9.284×10 A/cm) in 0.5 M HSO + 2 ppm HF and a low wear rate (3.82×10 mmNm). As confirmed by electrochemical tests, surface analysis, and in-situ corrosion observation, the
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The effects of σ phase on localized corrosion of 2205 duplex stainless steel in the presence of Pseudomonas aeruginosa Corros. Sci. (IF 8.3) Pub Date : 2024-04-06 Liyang Zhu, Jiajia Wu, Peng Wang, Dun Zhang, Ce Li, Yaohua Gao, Wenkai Wang
Pitting and galvanic corrosion of 2205 DSS with σ phase were investigated in the presence of . Pitting corrosion was accelerated by σ phase, and further promoted by . The σ phase changed the distribution of pitting sites from being concentrated on phase boundaries and α phase in the solution treated coupons to being around σ phase in the biotic medium. The galvanic corrosion between α and γ phases
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Effects of dissolved hydrogen on corrosion fatigue crack growth behavior of 316LN stainless steel in high temperature pressurized water environment Corros. Sci. (IF 8.3) Pub Date : 2024-04-05 Y.G. Zhao, Y.H. Lu, X.F. Zhang, Z.H. Li, T.G. Liu, T. Shoji
The effect of dissolved hydrogen (DH) on the corrosion fatigue crack growth (CFCG) behavior of 316LN stainless steel (SS) was investigated in high temperature pressurized water. The results indicated that DH slightly increased the CFCG threshold stress intensity range (ΔK) value by 9 % and significantly increased the corrosion fatigue crack growth rate (CFCGR) value by 35 %. On the one hand, DH promoted
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Investigation on mechanical properties and corrosion behavior of laser powder bed fusion 70/30 copper-nickel alloy Corros. Sci. (IF 8.3) Pub Date : 2024-04-05 Zhuangzhuang Liu, Qianwen Zhang, Bowei Zhang, Yixuan Wang, Pengcheng Zuo, Zequn Zhang, Junsheng Wu, Xiongbo Yan, Yizhong Huang, Xiaogang Li
70/30 copper-nickel alloy was manufactured by laser powder bed fusion (LPBF), followed by the comprehensive investigation on the relationship between its microstructures and mechanical properties as well as corrosion behavior. The results show that dislocation tangles at cellular boundaries can greatly contribute to its superior tensile properties than the commercial counterpart. In addition, the combination
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Polyurethane coatings with corrosion inhibition and color-fluorescence damage reporting properties based on APhen-grafted carbon dots Corros. Sci. (IF 8.3) Pub Date : 2024-04-05 Lingwei Ma, Di Xu, Shanghao Wu, Xin Guo, Tong Liu, Mumeng Wei, Jinke Wang, Zhibin Chen, Dawei Zhang
A dual-functional coating was developed by incorporating carbon dots (CDs) based additives with corrosion sensing and inhibition properties into a polyurethane (PU) matrix. The complex formed between CDs and 1,10-Phenanthrolin-5-amine (APhen) displays not only a bright red color but also fluorescence quenching in the presence of Fe (II) and Fe (III) ions produced during steel corrosion. Electrochemical
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Observation of the formation of CuAl2O4 by the direct consumption of Al2O3 in an NAB alloy at elevated temperature Corros. Sci. (IF 8.3) Pub Date : 2024-04-04 Shuo Ma, Zhao Shen, Xiaobin Yang, Jiang Ju, Xiaoqin Zeng, Liming Fu, Aidang Shan
The oxidation behaviors of a commercial C95500 nickel aluminum bronze (NAB) alloy at elevated temperatures were investigated. The oxide scale exhibited a triplex structure with an outmost CuAlO layer, an intermediate spinel-type AlO layer, and a deepest nano AlO film. The observation of CuAlO and AlO in the same grain with the same crystallographic orientation indicated that the outmost CuAlO was formed
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Corrosion behavior of Nb-doped FeCrAl alloy in 500°C steam Corros. Sci. (IF 8.3) Pub Date : 2024-04-03 Zhaolin Shi, Xinyi Pang, Kun Zhang, Miao Song, Donghai Du, Zhao Shen, Hui Wang
The corrosion behavior of Fe-13Cr-4Al-2.2Mo, a candidate cladding material for accident tolerant fuel, doped with varying concentrations of Nb (0, 0.5, 1.0, and 1.5 wt%), was investigated under conditions of 500°C/10.3 MPa superheated steam. Upon exposure, a triple-layer oxide film comprising outer, inner, and diffusion oxide layers was formed. The results indicate that the addition of Nb significantly
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A microstructure-sensitive electro-chemo-mechanical phase-field model of pitting and stress corrosion cracking Corros. Sci. (IF 8.3) Pub Date : 2024-04-03 Maciej Makuch, Sasa Kovacevic, Mark R. Wenman, Emilio Martínez-Pañeda
An electro-chemo-mechanical phase-field formulation is developed to simulate pitting and stress corrosion in polycrystalline materials. The formulation incorporates dependencies of mechanical properties and corrosion potential on crystallographic orientation. The model considers the formation and charging dynamics of an electric double layer through a new general boundary condition for the solution
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Verification of passivity condition of carbon steel under cathodic protection through in-situ spectroscopy Corros. Sci. (IF 8.3) Pub Date : 2024-04-02 Luca Casanova, Marco Menegazzo, Eugenio Gibertini, Federica Ceriani, Andrea Brenna, Marco Ormellese, Gianlorenzo Bussetti
Cathodic protection (CP) is a consolidated technique involving the circulation of a cathodic current (i) from an anode to a structure. This causes the electrode alkalisation depending on i and on the kinetics of the diffusive motion of ions, influencing the surface state of the metal. In this paper, the surface condition of carbon steel under CP has been studied through in-situ Raman spectroscopy and
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Effects of retained austenite stability on the electrochemical activity and stress corrosion cracking of ultrafine bainite steel in a marine environment Corros. Sci. (IF 8.3) Pub Date : 2024-04-01 Zhihui Wang, Xian Zhang, Li Gong, Jingjing Peng, Lin Cheng, Jing Liu, Kaiming Wu
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Four-dimensional electrochemical impedance spectroscopy: Role of microstructure on corrosion behaviour of Al-Si alloys additive-manufactured by laser powder bed fusion Corros. Sci. (IF 8.3) Pub Date : 2024-04-01 Yoshinao Hoshi, Ryo Miyazawa, Yuki Otani, Dasom Kim, Naoki Takata, Makoto Kobashi
Four-dimensional (4D) electrochemical impedance spectroscopy was applied to clarify the role of microstructures on the corrosion behaviour of Al-Si alloys additively manufactured by laser powder bed fusion in the immersion of NaCl solution. 3D complex impedance plots, comprising real, imaginary, and time axes, indicate that the impedance increases gradually at initial stage and then does not show apparent
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In-situ observation and kinetics study on shrinkage defect corrosion of ductile iron in NaCl solution Corros. Sci. (IF 8.3) Pub Date : 2024-03-31 Tianqi Chen, Liang Sun, Taike Zhang, Chao Liu, Xuequn Cheng, Xiaogang Li
The corrosion propagation and kinetics of shrinkage defects in ductile iron in NaCl solution were investigated by in-situ observation based on time-lapse microscopy and confocal laser scanning microscopy. Immersion experiments reveal that shrinkage defects endure notably harsher corrosion compared to the matrix, exhibiting an average depth increase of 52.38μm within a single day. The depth loss rate
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Effect of structural heterogeneity on stable pit growth of Co-based metallic glasses Corros. Sci. (IF 8.3) Pub Date : 2024-03-30 Haoran Ma, Chunyang Mu, Mingsi Yang, Feixiong Mao, Aina He, Yaqiang Dong, Qikui Man, Jiawei Li
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Transpassivation-induced structural evolution of oxide film on 654SMO super austenitic stainless steel Corros. Sci. (IF 8.3) Pub Date : 2024-03-30 X.X. Wei, B. Zhang, Y.T. Xu, Z.Y. Chen, X.L. Li, X.L. Ma
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Evolution of microstructure and changes in hydrogen embrittlement resistance of CLAM steel after long-term aging Corros. Sci. (IF 8.3) Pub Date : 2024-03-30 Yueyang Gu, Hanyu Zhao, Xiaonan Li, Wei Yan, Liangyin Xiong, Wei Chen, Demin Chen
To investigate the changes in hydrogen embrittlement (HE) resistance of China Low Activation Martensitic (CLAM) steel during thermal aging, CLAM steels were aged at 550 °C and 600 °C up to 5000 h. The evolution of microstructure, including the evolution of subgrains, the growth of MC carbides and MX carbonitrides, as well as the formation of Laves phase, were carefully characterized. The observed trend
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High temperature corrosion behavior of ADC12 aluminum alloy in oxalic acid solution Corros. Sci. (IF 8.3) Pub Date : 2024-03-30 Yicun Wang, Gangliang Huang, Hualiang Huang, Xiaotao Zheng
High temperature corrosion of ADC12 aluminum alloy in oxalic acid solution was investigated using weight loss, electrochemical measurements, surface technologies. The results showed that at room temperature, the aluminum alloy exhibited localized corrosion, while at high temperatures, it exhibited uniform corrosion. As the temperature rose from 30 °C to 90 °C, the rapid dissolution of its passivation
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New insights into the inhibition mechanism of carboxylate species on magnesium surface Corros. Sci. (IF 8.3) Pub Date : 2024-03-30 Yuxin Zhou, Xiaopeng Lu, Tim Würger, Daniel Höche, M.L. Zheludkevich, Fuhui Wang
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CO2 corrosion resistance of low-alloy steel tempered at different temperatures Corros. Sci. (IF 8.3) Pub Date : 2024-03-29 Kapil K. Gupta, Saber Haratian, Oleg V. Mishin, Rajan Ambat
The microstructure and corrosion resistance in a CO-saturated salt solution have been examined for a low-alloy steel subjected to different tempering treatments. It is found that corrosion resistance increases with increasing tempering temperature from 300°C to 600°C. Tempering at the different temperatures affects the formation of the corrosion scale. Comparing different samples after corrosion tests
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Effect of microstructure and bending angle in cold bend pipe of SA 106B on flow accelerated corrosion behavior in simulated pressurized water reactor secondary circuit water environment Corros. Sci. (IF 8.3) Pub Date : 2024-03-28 Y. Hu, Y.H. Lu, L. Xin, Y.M. Han, C. Hong
The flow-accelerated corrosion (FAC) behavior at different bending angles in bend pipe in simulated secondary circuit water environment of pressurized water reactor (PWR) was investigated. The results indicated that the FAC rates at different bending angles within the bend pipe strongly depended on the ferrite nanocrystallization degree and the mass transfer coefficients. Ferrite nanocrystallization
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High-temperature corrosion and carburization behaviour of austenitic stainless steels in impurity-added CO2 environments Corros. Sci. (IF 8.3) Pub Date : 2024-03-27 Gokul Obulan Subramanian, Sung Hwan Kim, Changheui Jang, Yu-Lung Chiu
The corrosion and carburization behaviour of four austenitic stainless steels were evaluated in CO and CO+impurities (CH, CO and O) at 600 °C. Exposure to CO, CO+CH, and CO+CO environments showed poor corrosion resistance, especially in 316 grades with the spallation of CrO layer and breakaway corrosion. Conversely, materials showed improved corrosion resistance in CO+O environment with thin CrO layer
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Influences of microstructures and macrozones on the stress corrosion cracking sensitivity of a near alpha titanium alloy Corros. Sci. (IF 8.3) Pub Date : 2024-03-27 Yali Xu, Xinjie Zhang, Xiaoyang Lu, Shuaifeng Zhang, Zhijie Sun, Fuyang Gao, Jinshan Li, Minjie Lai
In this study, we investigated stress corrosion cracking (SCC) behaviors in a near alpha titanium alloy (Ti-6Al-3Nb-2Zr-1Mo) with distinct microstructures and microtextures. By analyzing fracture surfaces, crack growth paths, and grain orientations, we found that the SCC crack growth rate increased with an increase in the volume fraction of the primary α phase, due to elevated crack initiation density
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Experiments and DFT calculations on the effects of interstitial hydrogen on Ti corrosion products in high temperature water Corros. Sci. (IF 8.3) Pub Date : 2024-03-27 Yilin Zhang, Yaqing Ren, Qi Guo, Xiangguo Li, Jian Xu, Tetsuo Shoji
The effects of the interstitial hydrogen on the characteristics of corrosion product of pure Ti in high temperature water was studied by a double exposure corrosion experiment and DFT calculations. A double-layer corrosion product was found in both internally hydrogen charged specimen and internally vacuumed specimen. The main difference in corrosion product was the thickness of outer layer. The adsorption
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Cavitation erosion of the AA7050 aluminum alloy in 3.5 wt% NaCl solution—Part 1: mitigating effect by corrosion Corros. Sci. (IF 8.3) Pub Date : 2024-03-27 Cheng-Cheng Pan, Da-Hai Xia, Meng-Yang Hou, Zhenbo Qin, Yunze Xu, Yashar Behnamian, Wenbin Hu
The corrosion in 3.5 wt% NaCl solution caused a mitigated weight loss of the aluminum alloy 7050 (AA7050) under cavitation erosion condition. The mechanism was observed using high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), electro back-scattered diffraction (EBSD), and potentiodynamic polarization. Both in deionized water and
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WITHDRAWN: Investigation on corrosion behaviors of 316 stainless steel in deep-sea water/sediments of the South China Sea via manned deep diving Corros. Sci. (IF 8.3) Pub Date : 2024-03-26 Sizhi Zuo-Jiang, Zihao Tian, Xuzhou Jiang, Hongying Yu, Dongbai Sun
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.
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Enhanced hydrogen barrier performance of ZrH1.8 via yttria-zirconia composite film developed through the ECD-MAO technique Corros. Sci. (IF 8.3) Pub Date : 2024-03-26 Zhan-lin Li, Yu-xin Kang, Shu-fang Yan, Shao-hui Yang, Wei-dong Chen, Chun-xia Guo, Wen Ma
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Exploring the impact of Al alloying on microstructure and hot nitric acid corrosion resistance of Ti-xAl (x=0, 1, 2, 3, 4, 5) alloys Corros. Sci. (IF 8.3) Pub Date : 2024-03-26 C.C. Liu, L.M. Zhang, Z. Liu, A.L. Ma, Z.X. Liu, Y.G. Zheng
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Corrosion mechanisms of plasma welded Nickel aluminium bronze immersed in seawater Corros. Sci. (IF 8.3) Pub Date : 2024-03-23 Tamsin Dobson, Nicolas Larrosa, Mark Reid, Kuladeep Rajamudili, Supriyo Ganguly, Harry Coules
Nickel Aluminium Bronzes (NAB) are copper-based multi-phase alloys used extensively in marine applications. NAB is vulnerable to seawater corrosion, however the interaction between its corrosion mechanisms and real-world factors including biofouling, weld microstructure and residual stress are poorly understood. Seawater corrosion tests were performed on plasma-welded NAB in laboratory and marine environments
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New insights into stress corrosion cracking mechanism of Alloy 600 in boiling water reactor (BWR) environment Corros. Sci. (IF 8.3) Pub Date : 2024-03-22 Pan Liu, Yunlong Wu, Xiangyu Zhong, Ken Oyama, Seiya Ogota, Jun Chai, Yutaka Watanabe, Tetsuo Shoji
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Insights into the fatigue damage mechanism of T91 steel in liquid lead-bismuth eutectic at 150–550 °C Corros. Sci. (IF 8.3) Pub Date : 2024-03-22 Baoquan Xue, Wen Wang, Jibo Tan, Wenjun Kuang, Xinqiang Wu, Ziyu Zhang, Xiang Wang, Wei Ke
The corrosion fatigue damage mechanism of T91 steel in liquid lead-bismuth eutectic (LBE) at 150–550 °C was investigated. The results showed that the corrosion behavior is dependent on temperature. The properties of the oxide scale may affect the fatigue crack initiation and embrittlement susceptibility. The crack propagated along the prior or deformed sub- grain boundaries (GBs) at 150 °C and 350
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Corrosion performance and mechanisms of tantalum coatings on 316 stainless-steel in subcritical aqueous solutions of NaCl and NaBr Corros. Sci. (IF 8.3) Pub Date : 2024-03-22 Junliang Wang, Shuai Zhang, Fei Han, Yangchun Luo, Jinhai Chen, Zhong-Ting Hu, Zhiyan Pan, Mian Hu
The corrosion behavior of 316 stainless-steel with a tantalum (Ta-316) coating deposited using PVD technology was investigated in subcritical environments containing Cl and Br at 290 °C and 6 MPa. The corrosion rate of Ta-316 continuously decreased with increasing exposure time, demonstrating its high corrosion resistance. A thin film, mainly composed of TaO, formed on the surface of the tantalum coating
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Thermal cycling behavior of Yb3+-Ce4+ co-doped La2Zr2O7-based TBCs: Experimental and theoretical research Corros. Sci. (IF 8.3) Pub Date : 2024-03-21 Pengsen Zhao, Haizhong Zheng, Guifa Li, Yongxiang Geng, Yixin Xiao, Hongbo Guo, Gang Wang, Shixian Zhao, Ping Peng
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First-principles insight into the pH-dependency of the corrosion inhibition ability of benzotriazole and 1,2,4-triazole for copper in chemical mechanical polishing slurry Corros. Sci. (IF 8.3) Pub Date : 2024-03-20 Pengfei Chang, Zisheng Huang, Huiqin Ling, Yunwen Wu, Ming Li, Tao Hang
A comprehensive set of first-principles calculations was conducted to elucidate the disparity and pH-dependency of the corrosion inhibition performance of benzotriazole and 1,2,4-triazole in copper chemical mechanical polishing (CMP) slurry. Unlike previous calculations adopted the simplified and rigid model with neutral molecules adsorbed on metallic copper surface, the models, including Cu and CuO
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Dual corrosion promotion of pipeline steel in sea mud induced by sulfate reducing bacteria: Bacteria concentration cell and electronic conduction of the biofilms covered sand grains Corros. Sci. (IF 8.3) Pub Date : 2024-03-20 Tiansui Zhang, Zixuan Xu, Huihai Wan, Xuedong Chen, Hongfang Liu
The microbiologically influenced corrosion (MIC) of X80 carbon steel in sea mud by sulfate reducing bacteria (SRB) was investigated and two unique MIC promotion mechanisms in sea mud were identified. For carbon steel at the seawater-mud interface, difference in the concentrations of sessile cells enhanced galvanic effect between the regions in seawater and sea mud, with the carbon steel in sea mud
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Distinct phase-selective corrosions of Ti-48Al alloy in aqueous electrolyte and molten salt Corros. Sci. (IF 8.3) Pub Date : 2024-03-20 Xiaohu Huang, P.S. Sankara Rama Krishnan, Kai Xiang Kuah, Tzee Luai Meng, Yee Ng, Hailong Liu, Siew Lang Teo, Rahul Karyappa, Ming Lin, Andrew Chun Yong Ngo, R.V. Ramanujan, Daniel J. Blackwood, Hongfei Liu
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Study on the structure and corrosion behavior of hot-dipped Zn–6Al–3Mg alloy coating in chlorine-containing environment Corros. Sci. (IF 8.3) Pub Date : 2024-03-19 Shengxing Wang, Xiaohan Ma, Jintao Bai, Jun Niu, Ruina Ma, An Du, Xue Zhao, Yongzhe Fan, Guolu Li
In this study, the microstructure and corrosion behavior of hot-dipped Zn–6Al–3Mg alloy coating in Cl-containing environment were studied. The results show that there are primary Zn phase, Al-rich phase and ternary eutectic phase in the coating. Electrochemical corrosion occurs due to the formation of micro-electric couples between dendrites and ternary eutectic. The corrosion process can be divided
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Evolution from near-neutral to high-pH environments susceptible to stress corrosion cracking: The role of sulfate and bicarbonate Corros. Sci. (IF 8.3) Pub Date : 2024-03-19 Shidong Wang, Hamed Shirazi, Guijiang Diao, Hanan Farhat, Weixing Chen
Stress corrosion cracking (SCC) testing was conducted on pipeline steels to investigate the transition from near-neutral to high-pH environments via solution evaporation and concentration. The study clarified the roles of sulfate and bicarbonate in enhancing crack dissolution and their impacts on SCC. In sulfate-absent concentrated solutions, intergranular branching primarily resulted from direct propagation
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Study of copper corrosion via extracellular electron transfer by nitrate reducing Halomonas titanicae Corros. Sci. (IF 8.3) Pub Date : 2024-03-19 Shihang Lu, Jiahao Sun, Nianting Xue, Tingyue Gu, Muqiu Xia, Wangchao Chu, Shiqiang Chen, Guangzhou Liu, Wenwen Dou
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Insights into the hydrophobic coating with integrated high-efficiency anti-corrosion, anti-biofouling and self-healing properties based on anti-bacterial nano LDH materials Corros. Sci. (IF 8.3) Pub Date : 2024-03-19 Zhi Wang, Zhengyu Jin, Haixian Liu, Ruoling Liu, Yi Zhang, Yansheng Yin, Hongfang Liu, Xin Yuan, Shaojia Fan, Hongwei Liu
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Tribology, corrosion, and tribocorrosion performance of aged lightweight steels: Effects of oxide film and carbide Corros. Sci. (IF 8.3) Pub Date : 2024-03-18 Yihao Tang, Pengfei Ji, Bo Li, Bohan Chen, Heyang Shi, Yuxing Guo, Shuzhi Zhang, Junsong Zhang, Xinyu Zhang, Riping Liu
The study investigated the tribology, corrosion, and tribocorrosion performance of aged Fe–30Mn–8Al–1.2 C–0.1Ti–(2Cr/Mo) steel, with a focus on oxide film and carbide. The precipitates changed from κ carbide to CrC/MoC with the addition of Cr/Mo. The inhomogeneous precipitation of CrC/MoC created zones of varying hardness, one being hard with strong strengthening and the other soft with weak strengthening
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Investigating the origins of the 'double rise' shape in hydrogen permeation transients on pure iron Corros. Sci. (IF 8.3) Pub Date : 2024-03-18 Sarah Alzein, Alixe Dreano, Frederic Christien
This study delves into the underlying causes of the atypical 'double rise' shape observed in hydrogen permeation rising transients on pure iron and low alloy steels. Electrochemical permeation experiments on pure iron reveal a fast initial rise, a short pseudo-plateau, and a slow second rise. Similar patterns emerge in the decaying transients. The micro-porosity present in material appears to act as
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A comparative experimental and theoretical calculation study of CaAl-LDH modified with various aromatic inhibitors for corrosion protection study in epoxy coatings Corros. Sci. (IF 8.3) Pub Date : 2024-03-16 Jingjing Wang, Yanhui Cao, Junhao Xue, Xinyue Zhang, Yu Liang, Kaifeng Chen, Congshu Huang, Dajiang Zheng
The in-depth influence mechanism of the functional groups and conjugated structure of aromatic inhibitor on the corrosion protection ability of CaAl layered double hydroxide (CaAl-LDH) in epoxy coatings was investigated by performing the inhibitor modification using three typical aromatic inhibitors. The electrochemistry impedance spectroscopy (EIS) measurement demonstrated that CaAl-LDH-MBT showed
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Investigation of an eco-friendly sodium alginate-sodium silicate inhibitor blend for carbon steel in a dynamic salt water environment Corros. Sci. (IF 8.3) Pub Date : 2024-03-16 E. De Ketelaere, D. Moed, M. Vanoppen, T. Depover, K. Verbeken
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Role of hygroscopic chloride salts on corrosion performance and hydrogen absorption of steel under cyclic wet-dry conditions Corros. Sci. (IF 8.3) Pub Date : 2024-03-15 Xiaole Han, Masatoshi Sakairi
The corrosion morphology of steel under aqueous NaCl, MgCl, and ZnCl droplets and the corresponding hydrogen permeation behaviour were investigated using surface characterization techniques and electrochemical methods. Under cyclic wet-dry conditions, Mg and Zn-containing surface layers were formed on steel and the latter presented a high corrosion resistance. The most active hydrogen entry occurred
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Towards understanding stress corrosion cracking of austenitic stainless steels exposed to realistic sea salt brines Corros. Sci. (IF 8.3) Pub Date : 2024-03-15 R.M. Katona, J.M. Taylor, T.A. McCready, C.R. Bryan, R.F. Schaller
Stress corrosion cracking behavior of stainless steel 304 L was investigated in full immersion, evaporated artificial sea salt brines (ASW) at 55 °C. It was observed that brines representative of thermodynamically stable brines at lower relative humidity (40% RH, MgCl-dominant) had a faster crack growth rate than high relative humidity brines (76% RH, NaCl-dominant). Observed crack growth rates ()
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Corrosion mechanism of cold forged 316 stainless steel in molten FLiNaK salt Corros. Sci. (IF 8.3) Pub Date : 2024-03-14 Minsung Hong, Shmuel Samuha, Peter Hosemann
This study examined how cold forging (CF) affects the corrosion of 316 stainless steel (SS) in molten FLiNaK salt at 700 °C for 48 h. CF samples had two corrosion areas: one near the top and another displaying intergranular corrosion (IGC). Samples with lower CF (5–30 %) showed more IGC, while the 50 % CF sample had less IGC but the shallowest corrosion depth. This was due to the increased number of
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Insight into the corrosion behaviors and mechanism of the self-healing Si/N-DLC films in oilfield environment Corros. Sci. (IF 8.3) Pub Date : 2024-03-14 Xubing Wei, Haiyan Feng, Zhengyu Liu, Zan Chen, Pingmei Yin, Shiqi Lu, Jiaqing Ding, Naizhou Du, Xiaowei Li, Guangan Zhang
The Si/N-DLC films with different Si and N contents were deposited and the corrosion behaviors in the simulated CO-saturated oilfield produced water was mainly investigated. Results reveal that Si/N-DLC films improves dramatically the corrosion resistance of the substrate. This attributes to not only the channel blockage caused by diffusion of corrosion products, being composed of silicon oxide (SiO)
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Effect of Mo on intergranular corrosion behavior in super-austenitic stainless steel Corros. Sci. (IF 8.3) Pub Date : 2024-03-13 Hua-yun Du, Qun-kun Hu, Xi-wen Yue, Jian-wen Jia, Ying-hui Wei, Li-feng Hou, Hong Luo, Qian Wang, Hong-wei He, Huan Wei, Xiao-da Liu
The effect of the Mo element on the intergranular corrosion behavior was investigated on super-austenitic stainless steels. The σ-phase structure and compositional changes of stainless steels with different Mo contents during aging at 800–900°C were investigated by TEM, combined with electrochemical tests, and two different intergranular corrosion mechanisms were revealed. The low-Mo 904 L stainless
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Influence of Severe Surface Plastic Deformation Induced by Shot Peening on Microstructure and Corrosion Resistance of fine grained 316 L stainless steel Corros. Sci. (IF 8.3) Pub Date : 2024-03-12 P. Ebrahimzadeh, L.B. Peral, R. González-Martínez, E. Mardaras, I. Fernández-Pariente
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Key role of gradient-nanostructure and extremely thin amorphous passive film on tribocorrosion behavior of a novel Cr+N alloyed high-Mn austenitic steel Corros. Sci. (IF 8.3) Pub Date : 2024-03-12 Shuchao Shen, Chen Chen, Xiangyang Qi, Bo Lv, Yuefeng Wang, Zhinan Yang, Fucheng Zhang
High manganese steel is influenced by the combined effects of corrosion and wear during service under specific conditions, resulting in components with shortened service life. Under harsh service environments, newly developed Cr+N alloyed austenitic high manganese steel (Mn18Cr7C0.6N0.2 steel) as a new type of railway steel has shown promising results. Herein, the tribocorrosion behaviors of Mn18Cr7C0
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The investigation of Bacillus cereus induced degradation of passive films of 5A06 aluminium alloy in simulated condensate solutions of space station Corros. Sci. (IF 8.3) Pub Date : 2024-03-11 Yali Feng, Junhang Chen, Qianqian Liu, Nana Chen, Shiwen Zou, Qiong Yao, Lin Lu, Kui Xiao
Microbiologically influenced corrosion in water recovery system of manned spacecrafts deserves attention. The effect of on the corrosion of 5A06 aluminium alloy in simulated condensate solutions of space station was investigated. The organic acids induced significant dissolution of aluminium alloy, electrochemical measurements results showed living cells could weakened the cathode reaction, and focused
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Effect of fretting regimes on the fretting corrosion behavior of stainless steel in artificial crevices Corros. Sci. (IF 8.3) Pub Date : 2024-03-11 Heng Liu, Jiachen Chen, Xiangdong Tian, Zening Wang, Yi Zhang, Yu Yan
Fretting crevice corrosion at the fastening interfaces of stainless-steel products is an unavoidable issue in the medical, marine, and nuclear industries. In this study, the effects of the fretting regimes on the fretting corrosion in artificial crevices were investigated, and the results showed that fretting initiated severe corrosion inside the crevice under the stick regime. Under the stick–slip
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Function of Cu-Sb or Al microalloying on the corrosion resistance of 9Cr steel exposed to simulated concrete pore solution Corros. Sci. (IF 8.3) Pub Date : 2024-03-10 Zhaodong Li, Runnong Chen, Yanguang Cao, Bo Gao, Qilong Yong, Qifu Zhang, Xiaogang Li
The role of Cu-Sb or Al on the passivation and Cl-induced depassivation of 9Cr steel in simulated concrete pore solution was systematically obtained via electrochemical tests and microstructure characterization. Both microalloying enhanced electrochemical passivation even if the solution pH dropped. Cu and Al participated in the formation of natural passive film, and the properties of passive film
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Advanced cavitation erosion-corrosion resistance of nickel-aluminum bronze prepared by directed energy deposition Corros. Sci. (IF 8.3) Pub Date : 2024-03-08 Cheng Xu, Yong Peng, Liang-Yu Chen, Tian-Yang Zhang, Jing-Jing Cheng, Ke-Hong Wang
The mechanical properties and cavitation erosion-corrosion behavior of directed energy deposition (DED) and as-cast nickel-aluminum bronze (NAB) alloys in 3.5 wt% NaCl solution were investigated. The DED-produced NAB alloy showed a finer microstructure, and the content of κ phases significantly decreased, improving yield strength (increased by 27.76%) and elongation (increased by 54.89%) of NAB alloy
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High-temperature steam oxidation experiment of molten zirconium alloy Corros. Sci. (IF 8.3) Pub Date : 2024-03-08 Haoli Wang, Simin Luo, Xinhai Zhao, Yapei Zhang, Yicong Lan, Xiaocheng Wu, Dong Wang, Wenxi Tian, Suizheng Qiu, G.H. Su
In this study, we investigate the steam oxidation behaviors of molten zirconium alloy at exceptionally high temperatures of 1870 ℃ and 1970 ℃. A specialized high-temperature steam oxidation apparatus was established to conduct the steam oxidation experiment. The experiments yielded crucial data including oxidation weight gain results, macroscopic appearance of the oxide surface, and section morphology
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Riboflavin-mediated Fe0-to-microbe electron transfer corrosion of EH40 steel by Halomonas titanicae Corros. Sci. (IF 8.3) Pub Date : 2024-03-08 Shihang Lu, Lingqun Zhang, Nianting Xue, Shiqiang Chen, Muqiu Xia, Mengyu Fu, Yuanyuan Gao, Wenwen Dou
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Exploring mechanism of corrosion inhibition of WE43 and AZ31 alloys by aqueous molybdate in Hank’s solution by multisine impedimetric monitoring Corros. Sci. (IF 8.3) Pub Date : 2024-03-07 Maria A. Osipenko, Jakub Karczewski, Michał Dominów, Marta Prześniak-Welenc, Jacek Gurgul, Iryna I. Kurilo, Jacek Ryl, Dzmitry S. Kharytonau
The concept of utilizing multisine dynamic electrochemical impedance spectroscopy to monitor effectiveness of a model molybdate inhibitor for AZ31 and WE43 Mg alloys is proposed. The corrosion kinetics and instantaneous values of inhibition efficiency () of molybdate at concentrations up to 150 mM were examined. The inhibitor provides inhibition in Hank’s solution at concentrations starting from ca
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Stress corrosion cracking behavior and mechanism of 2205 duplex stainless steel under applied polarization potentials Corros. Sci. (IF 8.3) Pub Date : 2024-03-07 Yue Pan, Baozhuang Sun, Hetian Chen, Zhiyong Liu, Wenhe Dai, Xiaojia Yang, Weiting Yang, Yida Deng, Xiaogang Li
In this work, a non-steady electrochemical model for assessing stress corrosion cracking (SCC) of 2205 duplex stainless steel (DSS) under applied polarization potentials was proposed, and the SCC mechanism was revealed. With the negative shift of potentials, hydrogen enhances SCC susceptibility by deteriorating passive film, inhibiting repassivation and causing serious damage. In particular, at −850 mV
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Effect of δ–ferrite and strain-induced martensite on hydrogen embrittlement of STS 308 L and STS 316 L all-weld metals Corros. Sci. (IF 8.3) Pub Date : 2024-03-07 Donghyeon Choi, Jimin Nam, Byungrok Moon, Sourav Kr. Saha, Jaeseok Yoo, Jong Min Park, Kwang Hee Yun, Namhyun Kang
The susceptibility of multipass flux-cored arc welds of STSs 308 L and 316 L to hydrogen embrittlement (HE) was investigated at various temperatures. Cracks predominantly initiated and propagated along the δ-ferrite in the interdendritic region at 25 °C. δ-ferrite served as preferred hydrogen trap sites, and the δ/γ boundary became the stress concentration site. At −100 °C, STSs 308 L and 316 L exhibited
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Towards a better understanding of hydrogen-assisted cracking in multiphase stainless steel Corros. Sci. (IF 8.3) Pub Date : 2024-03-06 Menghao Liu, Cuiwei Du, Xiaogang Li
Given the high strength of multiphase stainless steel, it is imperative to study its hydrogen embrittlement behavior. However, the understanding of hydrogen-assisted crack initiation and propagation is limited. In this study, we investigate the hydrogen-assisted cracking behavior of multiphase stainless steel through crack analysis, hydrogen permeation test, and hydrogen desorption experiments. Our