Hydrogen solubility and resistance to hydrogen embrittlement of Nb-Pd based alloys for hydrogen permeable membrane

被引：9

作者：

Watanabe, N. ^{[1
]}

Zhang, G. ^{[1
]}

Yukawa, H. ^{[1
]}

Morinaga, M. ^{[1
]}

Nambu, T. ^{[2
]}

Shimizu, K. ^{[3
]}

Sato, S. ^{[4
]}

Morisako, K. ^{[4
]}

Matsumoto, Y. ^{[4
]}

Yasuda, I. ^{[5
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mat Phys & Energy Engn, Chikusa Ku, Aichi 4648603, Japan

[2] Suzuka Natl Coll Technol, Dept Mat Sci & Engn, Suzuka 5100294, Japan

[3] Toyoshi Univ Technol, Dept Prod Syst Engn, Aichi 4418580, Japan

[4] Oita Natl Coll Technol, Dept Mech Engn, Oita 8700152, Japan

[5] Tokyo Gas Co Ltd, Technol Res Inst, Tokyo 1050023, Japan

来源：

ADVANCED MATERIALS AND PROCESSING | 2007年 / 26-28卷

基金：

日本学术振兴会;

关键词：

Hydrogen permeable membrane; niobium based alloy; hydrogen embrittlement; hydrogen solubility; small punch test;

D O I：

10.4028/www.scientific.net/AMR.26-28.873

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The alloying effects of Pd on the hydrogen solubility and the resistance to hydrogen embrittlement are investigated for Nb-xmol%Pd-ymol%Zr (x=0 similar to 19; y=0, 1) alloys. The hydrogen solubility at 673 K is found to decrease with increasing Pd content in the alloys. Both pure Nb and Nb-Pd alloys possessed ductility in vacuum at 673 K. However, severe hydrogen embrittlement occurs in pure Nb when it is tested under the hydrogen pressure even as low as 0.01 MPa. In view of the small punch (SP) absorption energy, the addition of Pd into Nb improves the resistance to hydrogen embrittlement by decreasing the hydrogen solubility in the alloy, although brittle fracture is still observed in the Nb-15mol%Pd alloy tested under a hydrogen pressure of 0.015 MPa at 673 K.

引用

页码：873 / +

页数：5

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