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Corrosion characteristics of Mo and TZM alloy for plasma facing components in molten lithium at 623 K
Meng, X. C.1,2; Li, L.2; Li, C. L.2; Andruczyk, D.3; Tritz, K.4; Maingi, R.5; Huang, M.2; Zhang, D. H.2; Xu, W.1,2; Sun, Z.2,5; Zuo, G. Z.2; Hu, J. S.2,6
2022-05-15
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Corresponding AuthorZuo, G. Z.(zuoguizh@ipp.ac.cn) ; Hu, J. S.(hujs@ipp.ac.cn)
AbstractIn 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.
KeywordCorrosion Liquid lithium Mo-based alloy PFM Blanket components
DOI10.1016/j.corsci.2022.110202
WOS KeywordLIQUID LITHIUM ; LEAD-LITHIUM ; COMPATIBILITY ; BEHAVIOR ; LIMITER ; STEEL
Indexed BySCI
Language英语
Funding ProjectNational 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
Funding OrganizationNational 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
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000781822700002
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/128500
Collection中国科学院合肥物质科学研究院
Corresponding AuthorZuo, G. Z.; Hu, J. S.
Affiliation1.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
3.Univ Illinois, Ctr Plasma Mat Interact, Dept Nucl Plasma & Radiol Engn, Urbana, IL 61801 USA
4.Johns Hopkins Univ, Baltimore, MD 21211 USA
5.Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA
6.CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
First Author AffilicationChinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Corresponding Author AffilicationChinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Recommended Citation
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).
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