Abnormal selective dissolution by the partial recrystallization in a plastically deformed austenitic stainless steel
作者:Zhou, QW (Zhou, Qingwen)[ 1 ] ; Zheng, ZJ (Zheng, Zhijun)[ 2 ] ; Gao, Y (Gao, Yan)[ 1,3 ]
CORROSION SCIENCE
卷: 188
文献号: 109548
DOI: 10.1016/j.corsci.2021.109548
出版年: AUG 1 2021
文献类型:Article
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摘要
The influence of microstructure evolution during ageing on the corrosion behavior of deformed Super304H stainless steel was studied. For deformed specimen after ageing, an abnormal dissolution current peak existed in the potentiodynamic polarization curve at early passivation when surface passive film was thin and sensitive to galvanic corrosion, which terminated as passivation proceeded to a complete and compact film. Partial recrystallization during ageing formed uneven microstructure where the recrystallized coarse grains were selectively dissolved due to their inferior corrosion resistance compared to the residual nano-grains. Increased recrystallization region in the over-deformed state intensified the selective dissolution to a higher current peak.
关键词
作者关键词:Austenitic stainless steel; Nanocrystallization; Ageing; Recrystallization; Galvanic corrosion
KeyWords Plus:CORROSION BEHAVIOR; MICROSTRUCTURAL EVOLUTIONS; DEFORMATION MECHANISMS; STIMULATED NUCLEATION; SURFACE; REVERSION; MARTENSITE; STRAIN; NANOCRYSTALLIZATION; PRECIPITATION
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Gao, Y (通讯作者)
显示更多 South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
地址:
显示更多 [ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
显示更多 [ 2 ] South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510641, Guangdong, Peoples R China
[ 3 ] Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
电子邮件地址:meygao@scut.edu.cn
基金资助致谢
基金资助机构显示详情 授权号
National Natural Science Foundation of China (NSFC)
51471072
Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials
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出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Materials Science; Metallurgy & Metallurgical Engineering
Web of Science 类别:Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering