Computational Evaluation of the Influence of Various Uniaxial Load Levels on Pit Growth of Stainless Steel under Mechanoelectrochemical Interactions

doi:10.1149/2.1071809jes

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	Computational Evaluation of the Influence of Various Uniaxial Load Levels on Pit Growth of Stainless Steel under Mechanoelectrochemical Interactions
	Guo, Shu; Wang, Haitao; Han, En-Hou
刊名	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
	2018
卷号	165 期号:9 页码:C515-C523
ISSN号	0013-4651
DOI	10.1149/2.1071809jes
通讯作者	Wang, Haitao(htwang@imr.ac.cn)
英文摘要	Numerical modelling of the effects of different applied load levels on the growth of metastable single pit in stainless steel is the subject of the present work. A cellular automata model integrated with finite element analysis is used, taking into account both the electrochemical reactions during metastable pitting growth process and the real-time influence of local stress/strain distribution at pit surface on anodic dissolution. Specifically, in the current work the impacts of uniaxial load levels on pitting corrosion for various conditions of passive layer degradation extents and hydrogen ions diffusion coefficients are quantitatively assessed in terms of current transient. For a general condition with uniaxial applied load level increases from 0 MPa to 250 MPa, the ascending trend of current transient and current density transient is observed due to the increase of plastic strain accumulation at pit bottom, revealing the enhancement of metastable pit growth rate. Meanwhile, the critical magnitude of load level enabling metastable pitting to alter into the development of stable pit for each condition is discussed and predicted. (C) 2018 The Electrochemical Society.
资助项目	National Key Research and Development Program of China[2017YFB0702100]
WOS研究方向	Electrochemistry ; Materials Science
语种	英语
出版者	ELECTROCHEMICAL SOC INC
WOS记录号	WOS:000440924800070
资助机构	National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/128813]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Haitao
作者单位	Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Guo, Shu,Wang, Haitao,Han, En-Hou. Computational Evaluation of the Influence of Various Uniaxial Load Levels on Pit Growth of Stainless Steel under Mechanoelectrochemical Interactions[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2018,165(9):C515-C523.
APA	Guo, Shu,Wang, Haitao,&Han, En-Hou.(2018).Computational Evaluation of the Influence of Various Uniaxial Load Levels on Pit Growth of Stainless Steel under Mechanoelectrochemical Interactions.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,165(9),C515-C523.
MLA	Guo, Shu,et al."Computational Evaluation of the Influence of Various Uniaxial Load Levels on Pit Growth of Stainless Steel under Mechanoelectrochemical Interactions".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 165.9(2018):C515-C523.