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Research on the Collaborative Effect of Plastic Deformation and Solution Treatment in the Intergranular Corrosion Property of Austenite Stainless Steel
Zhang Xiaosong1; Xu Yong1,2,3; Zhang Shihong1; Cheng Ming1; Zhao Yonghao2; Tang Qiaosheng3; Ding Yuexia3
Corresponding AuthorXu Yong(yxu@imr.ac.cn)
2017-03-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume53Issue:3Pages:335-344
AbstractAISI 304 austenite stainless steel was applied extensively in the modern industry due to its good properties on mechanics and corrosion resistance. However, there is severe intergranular corrosion when the AISI 304 was working at the temperature 420 similar to 850 degrees C called sensitizing temperature. This phenomenon was more obvious with increase of strain. In addition, this effect can not be removed completely even with the heat treatment subsequently. In present work, the influence of solution treatment and plastic deformation on the intergranular corrosion property of AISI 304 was investigated. The specimens subjected to different strain were obtained by the uniaxial tensile tests at room temperature. XRD was used to measure the fraction of martensitic phase which was induced by deformation. Optical metallographic microscope was applied to observe the evolution of microstructure. The influence of various deformation values, solution temperature and holding time on intergranular corrosion was quantitative analyzed by electrochemical potentiodynamic reactivation (EPR) method. Experimental results showed that the degree of the intergranular corrosion increased with the increase of deformation, and with the decrease of solution temperature and holding time. It is indicated that since the solubility of carbon in martensite and austenite is discrepant, the content of carbon in the grains recrystallized is discrepant too. The more martensite is transformed, the more chromium carbide is formed in the grain boundary after sensitization. This phenomenon causes poor intergranular corrosion resistance due to the lack of chromium. In addition, the carbon segregation which is caused by plastic deformation will relieve with the rise of solution temperature and holding time. It is because that the carbon atom is more active at higher temperature, and the distribution of carbon is more homogeneous with the extended holding time. Then the quantity of chromium carbide will decrease in solution treatment process. Consequently the chromium depletion will be mitigated. From the above, a uniform solution treatment condition is not suitable for austenite stainless steel with the effect of martensitic transformation in cold working. Flexible scheme can be employed to insure better combination property of products.
Keywordaustenite stainless steel plastic deformation martensitic transformation solution treatment sensitization intergranular corrosion
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation
DOI10.11900/0412.1961.2016.00284
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51304186] ; China Postdoctoral Science Foundation[2016M590454]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000398631400006
PublisherSCIENCE PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/124076
Collection中国科学院金属研究所
Corresponding AuthorXu Yong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Nanjing Univ Sci & Technol, Sch Mat & Engn, Nanjing 210016, Jiangsu, Peoples R China
3.Jiangsu Huayang Met Pipes Co Ltd, Zhenjiang 212400, Peoples R China
Recommended Citation
GB/T 7714
Zhang Xiaosong,Xu Yong,Zhang Shihong,et al. Research on the Collaborative Effect of Plastic Deformation and Solution Treatment in the Intergranular Corrosion Property of Austenite Stainless Steel[J]. ACTA METALLURGICA SINICA,2017,53(3):335-344.
APA Zhang Xiaosong.,Xu Yong.,Zhang Shihong.,Cheng Ming.,Zhao Yonghao.,...&Ding Yuexia.(2017).Research on the Collaborative Effect of Plastic Deformation and Solution Treatment in the Intergranular Corrosion Property of Austenite Stainless Steel.ACTA METALLURGICA SINICA,53(3),335-344.
MLA Zhang Xiaosong,et al."Research on the Collaborative Effect of Plastic Deformation and Solution Treatment in the Intergranular Corrosion Property of Austenite Stainless Steel".ACTA METALLURGICA SINICA 53.3(2017):335-344.
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