CORROSION MECHANISMS OF STAINLESS STEEL AND NICKEL BASE ALLOYS IN HIGH TEMPERATURE HIGH PRESSURE WATER

doi:10.3724/SP.J.1037.2010.00468

IMR OpenIR

	CORROSION MECHANISMS OF STAINLESS STEEL AND NICKEL BASE ALLOYS IN HIGH TEMPERATURE HIGH PRESSURE WATER
	Han En-Hou 1,2; Wang Jianqiu 1,2; Wu Xinqiang 1,2; Ke Wei 1,2
通讯作者	Han En-Hou(ehhan@imr.ac.cn)
	2010-11-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	46 期号:11 页码:1379-1390
摘要	The electrochemical corrosion behavior and the chemical components, structures and electronic characters of oxide films for stainless steels and Ni base alloys used in nuclear power plant were reviewed. The effects of water chemistry and microstructure of materials on oxide films were analyzed in order to relate the oxide film properties with electrochemical behaviors. The corrosion mechanism of the materials used in high temperature pressurized water is different with that used in room temperature water. The corrosion mechanism of the materials in high temperature pressurized water is controlled by electrochemistry and oxidation, whereas in room temperature water it is controlled only by electrochemistry. Oxide films has double-layer structure. The outer layer is porous, and the inner layer is composed by nano-crystalline and has semiconductivity which controlled the corrosion process. The microstructure, chemical composition, surface status of materials and water chemistry parameters are the key parameters which affect corrosion. The wedging stress of oxide inside the flaw could induce localized tensile stress at the tip of the flaw, which caused stress corrosion cracking initiation and propagation even in macro-compressive stressed region. The wedging stress of oxide is the key factor to induce stress corrosion cracking in compressive stressed region.
关键词	stainless steel nickle base alloy corrosion stress corrosion electrochemistry nuclear power plant surface oxide film
DOI	10.3724/SP.J.1037.2010.00468
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000291336800009
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/101614
专题	中国科学院金属研究所
通讯作者	Han En-Hou
作者单位	1.Chinese Acad Sci, State Key Lab Corros & Protect Met, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Liaoning Key Lab Safety & Assessment Tech Nucl Ma, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Han En-Hou,Wang Jianqiu,Wu Xinqiang,et al. CORROSION MECHANISMS OF STAINLESS STEEL AND NICKEL BASE ALLOYS IN HIGH TEMPERATURE HIGH PRESSURE WATER[J]. ACTA METALLURGICA SINICA,2010,46(11):1379-1390.
APA	Han En-Hou,Wang Jianqiu,Wu Xinqiang,&Ke Wei.(2010).CORROSION MECHANISMS OF STAINLESS STEEL AND NICKEL BASE ALLOYS IN HIGH TEMPERATURE HIGH PRESSURE WATER.ACTA METALLURGICA SINICA,46(11),1379-1390.
MLA	Han En-Hou,et al."CORROSION MECHANISMS OF STAINLESS STEEL AND NICKEL BASE ALLOYS IN HIGH TEMPERATURE HIGH PRESSURE WATER".ACTA METALLURGICA SINICA 46.11(2010):1379-1390.