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Weld corrosion of GH3535 in molten (Li,Na,K)F
Wang, YL; Zhang, SH; Zeng, CL; Li, WH; Zhang, SH (reprint author), Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China.; Li, WH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2018-03-01
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
Volume13Issue:3Pages:2577-2584
AbstractThe corrosion of structural materials in molten fluoride salts restricts the development of a molten salt reactor (MSR), with local galvanic corrosion of the weld joint being one of the major failure modes associated with the structural materials in the operating environment of an MSR. In this paper, in situ electrochemical measurements, combined with scanning electron microscopy (SEM/EDX) and metallographic microscope testing methods, are used to study the weld corrosion of GH3535 at 700 degrees C in molten (Li,Na,K)F. The results show that each part of the welding areas is in active dissolution state at the open circuit potential. The electrochemical behavior of the heat affected zone is similar to that of the GH3535 parent material. When the weld zone of the GH3535 is coupled with the parent alloy, galvanic corrosion occurs and the galvanic corrosion effect is larger than 1.; The corrosion of structural materials in molten fluoride salts restricts the development of a molten salt reactor (MSR), with local galvanic corrosion of the weld joint being one of the major failure modes associated with the structural materials in the operating environment of an MSR. In this paper, in situ electrochemical measurements, combined with scanning electron microscopy (SEM/EDX) and metallographic microscope testing methods, are used to study the weld corrosion of GH3535 at 700 degrees C in molten (Li,Na,K)F. The results show that each part of the welding areas is in active dissolution state at the open circuit potential. The electrochemical behavior of the heat affected zone is similar to that of the GH3535 parent material. When the weld zone of the GH3535 is coupled with the parent alloy, galvanic corrosion occurs and the galvanic corrosion effect is larger than 1.
description.department[wang, yanli] guangxi univ, sch chem & chem engn, nanning 530004, peoples r china ; [zhang, shenghua ; zeng, chaoliu] guangxi univ, sch resources environm & mat, nanning 530004, peoples r china ; [li, weihua] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
KeywordNaf-kf Salt Behavior Superalloy Fluoride Steels Air Cr
Subject AreaElectrochemistry
Funding OrganizationBagui scholars program of Guangxi; Academician Workstation Building Project of Guangxi Zhuang Autonomous Region Scientific and Technological Department [[2014] 91]; National Natural Science Foundation of China [51271190]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79442
Collection中国科学院金属研究所
Corresponding AuthorZhang, SH (reprint author), Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China.; Li, WH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Wang, YL,Zhang, SH,Zeng, CL,et al. Weld corrosion of GH3535 in molten (Li,Na,K)F[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2018,13(3):2577-2584.
APA Wang, YL,Zhang, SH,Zeng, CL,Li, WH,Zhang, SH ,&Li, WH .(2018).Weld corrosion of GH3535 in molten (Li,Na,K)F.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,13(3),2577-2584.
MLA Wang, YL,et al."Weld corrosion of GH3535 in molten (Li,Na,K)F".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 13.3(2018):2577-2584.
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