Microstructures and hydrogen permeation characteristics of Nb-Ti-Ni alloys

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	Microstructures and hydrogen permeation characteristics of Nb-Ti-Ni alloys
	Xiong Liangyin; Liu Shi; Wang Longbao; Rong Lijian
通讯作者	Liu Shi(sliu@imr.ac.cn)
	2008-07-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	44 期号:7 页码:781-785
摘要	Microstructures 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.
关键词	Nb-Ti-Ni alloy hydrogen permeability hydrogen embrittlement
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000258314600003
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/95210
专题	中国科学院金属研究所
通讯作者	Liu Shi
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 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.