The synergy between deformation and anodic dissolution of an austenitic stainless steel in acidic chloride solution

doi:10.1002/maco.200303718

	The synergy between deformation and anodic dissolution of an austenitic stainless steel in acidic chloride solution
	Yanliang, H
	2004-02-01
发表期刊	MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
ISSN	0947-5117
卷号	55 期号:2 页码:102-105
文章类型	Article
摘要	In corrosion medium, metals can deform under tensile stress and form a new active surface with the anodic dissolution of the metals being accelerated. At the same time, the anodic dissolution may accelerate the deformation of the metals. The synergy can lead to crack nucleation and development and shorten the service life of the component. Austenitic stainless steel in acidic chloride solution was in active dissolution condition when stress corrosion cracking (SCC) occurred. It is reasonable to assume that the anodic dissolution play an important role, so it's necessary to study the synergy between anodic dissolution and deformation of austenitic stainless steels. The synergy between deformation and anodic dissolution of AISI 321 austenitic stainless steel in an acidic chloride solution was studied in this paper. The corrosion rate of the steel increased remarkably due to the deformation-accelerated anodic and cathodic processes. The creep rate was increased while the yield strength was reduced by anodic dissolution. The analysis by thermal activation theory of deformation showed a linear relationship between the logarithm of creep rate and the logarithm of anodic cur-rent. Besides, the reciprocal of yield strength was also linearly dependent on the logarithm of anodic current. The theoretical deductions were in good agreement with experimental results.; In corrosion medium, metals can deform under tensile stress and form a new active surface with the anodic dissolution of the metals being accelerated. At the same time, the anodic dissolution may accelerate the deformation of the metals. The synergy can lead to crack nucleation and development and shorten the service life of the component. Austenitic stainless steel in acidic chloride solution was in active dissolution condition when stress corrosion cracking (SCC) occurred. It is reasonable to assume that the anodic dissolution play an important role, so it's necessary to study the synergy between anodic dissolution and deformation of austenitic stainless steels. The synergy between deformation and anodic dissolution of AISI 321 austenitic stainless steel in an acidic chloride solution was studied in this paper. The corrosion rate of the steel increased remarkably due to the deformation-accelerated anodic and cathodic processes. The creep rate was increased while the yield strength was reduced by anodic dissolution. The analysis by thermal activation theory of deformation showed a linear relationship between the logarithm of creep rate and the logarithm of anodic cur-rent. Besides, the reciprocal of yield strength was also linearly dependent on the logarithm of anodic current. The theoretical deductions were in good agreement with experimental results.
关键词	Stress-corrosion Surface Metals
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
DOI	10.1002/maco.200303718
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000189160000004
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2324
专题	海洋环境腐蚀与生物污损重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Yanliang, H. The synergy between deformation and anodic dissolution of an austenitic stainless steel in acidic chloride solution[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2004,55(2):102-105.
APA	Yanliang, H.(2004).The synergy between deformation and anodic dissolution of an austenitic stainless steel in acidic chloride solution.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,55(2),102-105.
MLA	Yanliang, H."The synergy between deformation and anodic dissolution of an austenitic stainless steel in acidic chloride solution".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 55.2(2004):102-105.

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