Microscale investigation of the correlation between microstructure and galvanic corrosion of low alloy steel A508 and its welded 309/308L stainless steel overlayer

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	Microscale investigation of the correlation between microstructure and galvanic corrosion of low alloy steel A508 and its welded 309/308L stainless steel overlayer
	Okonkwo, Bright O.; Ming, Hongliang; Zhang, Zhiming; Wang, Jianqiu; Rahimi, Ehsan; Hosseinpour, Saman; Davoodi, Ali
	2019-07-01
Source Publication	CORROSION SCIENCE
ISSN	0010-938X
Volume	154 Pages:49-60
Abstract	The microscopic scale correlation between microstructure and galvanic corrosion of low alloy steel-A508 and its welded-309/308L stainless steel overlayer is investigated. Microstructural characterization shows that the welding process induces complexities at HAZ of the base metal. The microstructure of HAZ changes from tempered bainite to a non-uniform mixture of martensite and bainite, depending on the heat flow. This change in the microstructure leads to a heterogeneous corrosion attack on the base metal (anode), while the weld metal (cathode) is protected in a galvanic interaction. The extent and rate of corrosion attacks on the surface constituents are quantified by AFM.
Keyword	Low alloy steel Stainless steel SEM AFM Interface Inclusion
Indexed By	SCI
Language	英语
WOS ID	WOS:000470945700005
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics	Cited Times:5[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/80955
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Okonkwo, Bright O.,Ming, Hongliang,Zhang, Zhiming,et al. Microscale investigation of the correlation between microstructure and galvanic corrosion of low alloy steel A508 and its welded 309/308L stainless steel overlayer[J]. CORROSION SCIENCE,2019,154:49-60.
APA	Okonkwo, Bright O..,Ming, Hongliang.,Zhang, Zhiming.,Wang, Jianqiu.,Rahimi, Ehsan.,...&Davoodi, Ali.(2019).Microscale investigation of the correlation between microstructure and galvanic corrosion of low alloy steel A508 and its welded 309/308L stainless steel overlayer.CORROSION SCIENCE,154,49-60.
MLA	Okonkwo, Bright O.,et al."Microscale investigation of the correlation between microstructure and galvanic corrosion of low alloy steel A508 and its welded 309/308L stainless steel overlayer".CORROSION SCIENCE 154(2019):49-60.

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