Changes in Hydrogen Permeability and Microstructures of Nb-(Ti, Zr)Ni Alloys by Cold Rolling and Annealing

DOI Web Site Web Site 被引用文献1件 参考文献20件
  • Tang Huxiang
    Department of Materials Science, Kitami Institute of Technology
  • Ishikawa Kazuhiro
    Department of Materials Science, Kitami Institute of Technology
  • Aoki Kiyoshi
    Department of Materials Science, Kitami Institute of Technology

この論文をさがす

抄録

Maximum cold rolling reduction rates of as-cast Nb40Ti30−xZrxNi30 alloys were measured to evaluate ductility by measuring the change in the thickness. 50% or higher reduction rates were obtained for the alloys containing the Zr content of 12 mol% or less, but lower values were obtained for the alloys substituted with more Zr. Changes of hydrogen permeability (Φ) and microstructures of the Nb40Ti18Zr12Ni30 alloy caused by cold-rolling and subsequent vacuum annealing were investigated. Φ of this alloy was reduced to the half of the as-cast one by the 50% reduction rate, but recovered to 3.23×10−8 [molH2m−1 s−1 Pa−0.5], which is 1.13 times higher than that of as-cast one, by a subsequent annealing for 360 ks at 1273 K. Although the eutectic phase disappeared and was replaced by a small spherical (Nb, Ti, Zr) phase embedded in the (Ti, Zr)Ni matrix after rolling and subsequent annealing, these alloys showed good resistance to the hydrogen embrittlement at 523 K or more.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (20)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ