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Corrosion characteristics of Mo and TZM alloy for plasma facing components in molten lithium at 623 K

文献类型：期刊论文

作者Meng, X. C.5,6; Li, L.5; Li, C. L.5; Andruczyk, D.4; Tritz, K.3; Maingi, R.2; Huang, M.5; Zhang, D. H.5; Xu, W.5,6; Sun, Z.2,5
刊名CORROSION SCIENCE
出版日期2022-05-15
卷号200
ISSN号0010-938X
关键词Corrosion Liquid lithium Mo-based alloy PFM Blanket components
DOI10.1016/j.corsci.2022.110202
通讯作者Zuo, G. Z.(zuoguizh@ipp.ac.cn) ; Hu, J. S.(hujs@ipp.ac.cn)
英文摘要In this study, the corrosion behaviours of molybdenum (Mo) and a Mo-based alloy (TZM) were investigated using a static immersion corrosion technique. Weight loss, surface microstructure, and corrosion depth of Mo and the TZM alloy were correlated with elements. The compatibility of Mo and the TZM alloy in static liquid Li was suitable. Mo demonstrated uniform corrosion with a homogenous dissolution of free C and Mo, and TZM alloy exhibited a nonuniform corrosion behaviour with a preferential grain boundary attack caused by the selective dissolution of free C, Ti, and Zr. When the surface oxidation layer of the samples was consumed, free C from Mo and TZM diffused into molten Li to form Li2C2 and then was captured by Zr, Ti, and Mo to form thermodynamically stable carbides, which resulted in the enrichment of the C layer near the sample surfaces. In addition, Ti and Zr acted as N-trappers in liquid Li; the formation of Zr and Ti nitrides resulted in the enrichment of N, Ti, and Zr elements on the surface and led to TZM corrosion increase. Thus, Zr and Ti depletion, pitting, and grain boundary corrosion were problematic for TZM under long-term exposure to liquid Li. Reducing the content of free C and nonmetallic N and increasing the amount of Ti and Zr carbides on the surface of and inside the raw TZM alloy helped improve the corrosion resistance of TZM in liquid Li.
WOS关键词LIQUID LITHIUM ; LEAD-LITHIUM ; COMPATIBILITY ; BEHAVIOR ; LIMITER ; STEEL
资助项目National Nature Science Foundation of China[119050138] ; National Nature Science Foundation of China[11625524] ; National Nature Science Foundation of China[11775261] ; National Nature Science Foundation of China[11905148] ; National Nature Science Foundation of China[12105135] ; National Key Research and Development Program of China[2017YFA04025000] ; National Key Research and Development Program of China[2017YFE030110] ; Excellence Pro-gram of Hefei Science Center CAS[2020HSC-UE010] ; Institute of Energy, Hefei Comprehensive National Science Center[21KZS202] ; Institute of Energy, Hefei Comprehensive National Science Center[21KZS208] ; Interdisciplinary and Collaborative Teams of CAS
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000781822700002
资助机构National Nature Science Foundation of China ; National Key Research and Development Program of China ; Excellence Pro-gram of Hefei Science Center CAS ; Institute of Energy, Hefei Comprehensive National Science Center ; Interdisciplinary and Collaborative Teams of CAS
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/128499]  
专题中国科学院合肥物质科学研究院
通讯作者Zuo, G. Z.; Hu, J. S.
作者单位1.CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
2.Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA
3.Johns Hopkins Univ, Baltimore, MD 21211 USA
4.Univ Illinois, Ctr Plasma Mat Interact, Dept Nucl Plasma & Radiol Engn, Urbana, IL 61801 USA
5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
6.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Meng, X. C.,Li, L.,Li, C. L.,et al. Corrosion characteristics of Mo and TZM alloy for plasma facing components in molten lithium at 623 K[J]. CORROSION SCIENCE,2022,200.
APA Meng, X. C..,Li, L..,Li, C. L..,Andruczyk, D..,Tritz, K..,...&Hu, J. S..(2022).Corrosion characteristics of Mo and TZM alloy for plasma facing components in molten lithium at 623 K.CORROSION SCIENCE,200.
MLA Meng, X. C.,et al."Corrosion characteristics of Mo and TZM alloy for plasma facing components in molten lithium at 623 K".CORROSION SCIENCE 200(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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