Research on the Collaborative Effect of Plastic Deformation and Solution Treatment in the Intergranular Corrosion Property of Austenite Stainless Steel

doi:10.11900/0412.1961.2016.00284

CORC > 金属研究所 > 中国科学院金属研究所

	Research on the Collaborative Effect of Plastic Deformation and Solution Treatment in the Intergranular Corrosion Property of Austenite Stainless Steel
	Zhang Xiaosong 1; Xu Yong 1,2,3; Zhang Shihong 1; Cheng Ming 1; Zhao Yonghao 2; Tang Qiaosheng 3; Ding Yuexia 3
刊名	ACTA METALLURGICA SINICA
	2017-03-11
卷号	53 期号:3 页码:335-344
关键词	austenite stainless steel plastic deformation martensitic transformation solution treatment sensitization intergranular corrosion
ISSN号	0412-1961
DOI	10.11900/0412.1961.2016.00284
通讯作者	Xu Yong(yxu@imr.ac.cn)
英文摘要	AISI 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.
资助项目	National Natural Science Foundation of China[51304186] ; China Postdoctoral Science Foundation[2016M590454]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000398631400006
资助机构	National Natural Science Foundation of China ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/124075]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu Yong
作者单位	1.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
推荐引用方式 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.