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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.1,2; Ming, Hongliang1; Zhang, Zhiming1; Wang, Jianqiu1; Rahimi, Ehsan3,4; Hosseinpour, Saman5; Davoodi, Ali5
Corresponding AuthorWang, Jianqiu(wangjianqiu@imr.ac.cn)
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
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Program of the Chinese Academy of Sciences
DOI10.1016/j.corsci.2019.03.027
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFE0105200] ; National Key Research and Development Program of China[2017YFB0702100] ; National Natural Science Foundation of China[51771211] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC012] ; Key Program of the Chinese Academy of Sciences[ZDRW-CN-2017-1]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000470945700005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/133764
Collection中国科学院金属研究所
Corresponding AuthorWang, Jianqiu
Affiliation1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
3.Ferdowsi Univ Mashhad, Fac Engn, Mat & Met Engn Dept, Mashhad 9177948974, Razavi Khorasan, Iran
4.Univ Udine, Dept Engn & Architecture, Via Cotonificio 108, I-33100 Udine, Italy
5.Friedrich Alexander Univ Erlangen Nurnberg FAU, Inst Particle Technol LFG, Cauerstr 4, D-91058 Erlangen, Germany
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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