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Microstructures and hydrogen permeation characteristics of Nb-Ti-Ni alloys
Xiong Liangyin; Liu Shi; Wang Longbao; Rong Lijian
Corresponding AuthorLiu Shi(sliu@imr.ac.cn)
2008-07-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume44Issue:7Pages:781-785
AbstractMicrostructures and hydrogen permeation properties of Nb50Ti25Ni25 and Nb40Ti30Ni30 alloys were investigated, and compared with those of Nb, Pd and Pd-Ag alloy. The results indicate that the microstructures of the two alloys consist of the primary bcc-Nb(Ti,Ni) solid solution and the eutectic of bcc-Nb(Ti,Ni)+B2-TiNi, and the volume fraction of the eutectic phase increases with additions of Ni and Ti. The hydrogen permeabilities of the two alloys at 673 K are 1.71x10(-8) and 1.03x10(-8) mol(.)m(-1.)s(-1.)Pa(-0.5), respectively, which are in the same magnitude level as that of pure Pd, but a little lower than that of Pd-Ag alloy. Increasing of eutectic phase favors resistance to hydrogen embrittlement, while the hydrogen permeability of the alloys increases evidently with increasing the primary phase. Alloys with high hydrogen permeability and good resistance to hydrogen embrittlement can be designed by optimization of Ni and Ti contents.
KeywordNb-Ti-Ni alloy hydrogen permeability hydrogen embrittlement
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000258314600003
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/95210
Collection中国科学院金属研究所
Corresponding AuthorLiu Shi
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Xiong Liangyin,Liu Shi,Wang Longbao,et al. Microstructures and hydrogen permeation characteristics of Nb-Ti-Ni alloys[J]. ACTA METALLURGICA SINICA,2008,44(7):781-785.
APA Xiong Liangyin,Liu Shi,Wang Longbao,&Rong Lijian.(2008).Microstructures and hydrogen permeation characteristics of Nb-Ti-Ni alloys.ACTA METALLURGICA SINICA,44(7),781-785.
MLA Xiong Liangyin,et al."Microstructures and hydrogen permeation characteristics of Nb-Ti-Ni alloys".ACTA METALLURGICA SINICA 44.7(2008):781-785.
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