Electrochemical Corrosion Behavior of 904L Stainless Steel under Constant Load
摘 要
采用电化学方法研究了不同弹性恒载荷条件下904L不锈钢的阳极极化行为及Cl-敏感性。结果表明:外加恒载荷可显著改变904L不锈钢的阳极极化行为,随着外加恒载荷的增加,阳极活性电流密度递增,表面点蚀数量增加,钝化膜的阻抗值逐渐降低,点蚀敏感性提高。外加恒载荷和Cl-含量均会对904L不锈钢Cl-敏感性产生影响,Cl-质量分数≤5%时,外加恒载荷可明显改变904L不锈钢的Cl-敏感性,击破电位显著负移;Cl-质量分数 > 5%时,Cl-含量的增加削弱了外加恒载荷对904L不锈钢Cl-敏感性的影响,击破电位负移幅度减小。
Abstract
The anodic polarization behavior and the sensitivity to Cl- of 904L super austenitic stainless steel under different loading conditions were studied by electrochemical methods. The results show that the anodic polarization of 904L stainless steel can be significantly changed by applying constant load. With the increase of tensile stress, the anodic current density increased rapidly, the number of surface pitting increased, the resistance of passivation film gradually decreased and the pitting sensitivity increased. In addition, both constant load and Cl- concentration affected the Cl- sensitivity of 904L stainless steel. When the mass fraction of Cl- was less than 5%, the addition of constant load could greatly change the sensitivity of Cl- of 904L, and the breakdown potential significantly shifted negatively. When the mass fraction of Cl- was less than 5%, the influence of applied constant load on the sensitivity of 904L Cl- decreased, and the amplitude of negative displacement of the breakdown potential decreased.
中图分类号 TG174 DOI 10.11973/fsyfh-201905009
所属栏目 试验研究
基金项目
收稿日期 2018/6/15
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: ZHANG Dubao,LI Chengtao,FANG Kewei,Dong Shuai,LUO Kunjie,SHEN Gang,WU Huanchun,WU Xiangfeng. Electrochemical Corrosion Behavior of 904L Stainless Steel under Constant Load[J]. Corrosion & Protection, 2019, 40(5): 354
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】KOVA A J,KOSEC T,LEGAT A. Monitoring behaviour of 304 stainless steel under constant tensile loading by electrochemical impedance spectroscopy[J]. British Corrosion Journal,2013,47(7):478-483.
【2】HUANG Y,XUAN F Z,ITOH T,et al. Electrochemical properties of 304 stainless steel under proportional and non-proportional multiaxial loading condition[C]//ASME 2012 Pressure Vessels and Piping Conference.[S.l]:[s.n.],2012:697-701.
【3】WANG S. Effect of different loading conditions on the service life of mine steel wire in corrosive medium[J]. International Journal of Electrochemical Science,2016,11(6):4755-4770.
【4】WANG H,HAN E H. Simulation of metastable corrosion pit development under mechanical stress[J]. Electrochimica Acta,2013,90(5):128-134.
【5】WANG H,HAN E H. Computational simulation of corrosion pit interactions under mechanochemical effects using a cellular automaton/finite element model[J]. Corrosion Science,2016,103:305-311.
【6】WANG H,HAN E H. Numerical simulation of interactions between corrosion pits on stainless steel under loading conditions[J]. Corrosion Science and technology,2017,16(2):64-68.
【7】GAO K,LI D,PANG X,et al. Corrosion behaviour of low-carbon bainitic steel under a constant elastic load[J]. Corrosion Science,2010,52(10):3428-3434.
【8】YANG H,ZHANG Q,LI Y,et al. Effects of elastic stress on corrosion rate of carbon steel in seawater[J]. Journal of Huazhong University of Science & Technology,2016,44(10):16-21.
【9】KIM S J. Effect of the elastic tensile load on the electrochemical corrosion behavior and diffusible hydrogen content of ferritic steel in acidic environment[J]. International Journal of Hydrogen Energy,2017,42:19367-19375.
【2】HUANG Y,XUAN F Z,ITOH T,et al. Electrochemical properties of 304 stainless steel under proportional and non-proportional multiaxial loading condition[C]//ASME 2012 Pressure Vessels and Piping Conference.[S.l]:[s.n.],2012:697-701.
【3】WANG S. Effect of different loading conditions on the service life of mine steel wire in corrosive medium[J]. International Journal of Electrochemical Science,2016,11(6):4755-4770.
【4】WANG H,HAN E H. Simulation of metastable corrosion pit development under mechanical stress[J]. Electrochimica Acta,2013,90(5):128-134.
【5】WANG H,HAN E H. Computational simulation of corrosion pit interactions under mechanochemical effects using a cellular automaton/finite element model[J]. Corrosion Science,2016,103:305-311.
【6】WANG H,HAN E H. Numerical simulation of interactions between corrosion pits on stainless steel under loading conditions[J]. Corrosion Science and technology,2017,16(2):64-68.
【7】GAO K,LI D,PANG X,et al. Corrosion behaviour of low-carbon bainitic steel under a constant elastic load[J]. Corrosion Science,2010,52(10):3428-3434.
【8】YANG H,ZHANG Q,LI Y,et al. Effects of elastic stress on corrosion rate of carbon steel in seawater[J]. Journal of Huazhong University of Science & Technology,2016,44(10):16-21.
【9】KIM S J. Effect of the elastic tensile load on the electrochemical corrosion behavior and diffusible hydrogen content of ferritic steel in acidic environment[J]. International Journal of Hydrogen Energy,2017,42:19367-19375.
相关信息