表面技术Issue(3)：9-14,6.DOI:10.16490/j.cnki.issn.1001-3660.2015.03.002
304不锈钢在模拟深海和浅海环境中的应力腐蚀行为
Stress Corrosion Behavior of 304 Stainless Steel in Simulated Deep and Shallow Seawater Environments
摘要
Abstract
ABSTRACT:Objective To study the stress corrosion cracking ( SCC) behavior of 304 stainless steel in simulated deep and shal-low seawater environments. Methods The environment of a sea area in the South Sea was simulated by controlling different environ-mental factors, and potentiodynamic polarization, electrochemical impedance spectroscopy, slow strain rate test ( SSRT) and super-ficial analysis technique using scanning electron microscope were applied for the research. Results 304 stainless steel exhibited a passivation behavior in the simulated seawater solution, and showed SCC susceptibility, besides, the crack propagation mode was transgranular cracking. The SCC mechanism in shallow sea was mainly controlled by anodic dissolution, while that in deep sea was controlled by hydrogen embrittlement. Conclusion Although 304 showed different SCC mechanisms in simulated deep sea and shal-low sea, the SCC sensitivities were close and relatively low. So the use of 304 SS in simulated seawater environment was not limited by the depth of seawater.关键词
304不锈钢/模拟深海/应力腐蚀Key words
304 stainless steel/simulated deep sea/stress corrosion分类
矿业与冶金引用本文复制引用
胡建朋,刘智勇,胡山山,李晓刚,杜翠薇..304不锈钢在模拟深海和浅海环境中的应力腐蚀行为[J].表面技术,2015,(3):9-14,6.基金项目
国家重点基础研究发展计划(973计划,2014CB643300) （973计划,2014CB643300）
国家自然科学基金(51471034) （51471034）
北京市青年英才计划@@@@Supported by the National Basic Research Program of China (973 Program,2014CB643300), the National Natural Science Foundation of China (51471034) and Beijing Higher Education Young Elite Teacher Project （973 Program,2014CB643300）
