Weld corrosion of GH3535 in molten (Li,Na,K)F

IMR OpenIR

	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
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	13 期号:3 页码:2577-2584
摘要	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.; 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.
部门归属	[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
关键词	Naf-kf Salt Behavior Superalloy Fluoride Steels Air Cr
学科领域	Electrochemistry
资助者	Bagui 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]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79442
专题	中国科学院金属研究所
通讯作者	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.
推荐引用方式 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.