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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 PublicationCORROSION SCIENCE
ISSN0010-938X
Volume154Pages:49-60
AbstractThe 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.
KeywordLow alloy steel Stainless steel SEM AFM Interface Inclusion
Indexed BySCI
Language英语
WOS IDWOS:000470945700005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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