Abnormal selective dissolution by the partial recrystallization in a plastically deformed austenitic stainless steel

时间:2021-09-16作者:浏览量:219


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

 

: 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