Hydrogen permeation of eutectic Nb-Zr-Ni alloy membranes containing primary phases
Hydrogen permeation of eutectic Nb-Zr-Ni alloy membranes containing primary phases
复制标题
DOI：
10.2320/matertrans.45.3360
复制
发表时间：
2004-12
影响因子：
1.2
通讯作者：
T. Takano;K. Ishikawa;T. Matsuda;K. Aoki
中科院分区：
文献类型：
--
作者：
T. Takano;K. Ishikawa;T. Matsuda;K. Aoki
用气体流量计测量了含ZrNi或bcc-（Nb，Zr）共晶Nb-Zr-Ni合金膜的氢渗透率（Φ）。含ZrNi初生相（16vol%）的Nb 1 0 Zr 4 5 Ni 4 5合金的Φ为2.35 × 10 - 8 [mol H 2 m - 1 s - 1 Pa - 0 .而含有18vol%的初生bcc-（Nb，Zr）相的Nb 2 0 Zr 4 0 Ni 4 0合金的Φ为2. 73 × 10 - 8 [mol H2 m - 1 s - 1 Pa - 0 . [5 ] 673 K.这些值高于纯Pd和Nb-Ti-Ni系中Φ值最高的Nb 39 Ti 31 Ni 30合金。目前的工作强烈支持我们以前的建议，多相合金含有共晶结构，抑制氢脆，是有前途的新型氢渗透膜。
Hydrogen permeability (Φ) of eutectic Nb-Zr-Ni alloy membranes containing the primary phases ZrNi or bcc-(Nb, Zr) was measured using a gas flow meter. Φ of the Nb 1 0 Zr 4 5 Ni 4 5 alloy containing the primary ZrNi phase (16 vol%) was 2.35 x 10 - 8 [mol H 2 m - 1 s - 1 Pa - 0 . 5 ] at 673 K, while Φ of the Nb 2 0 Zr 4 0 Ni 4 0 alloy containing the primary bcc-(Nb, Zr) phase (18 vol%) was 2.73 × 10 - 8 [mol H 2 m - 1 s - 1 Pa - 0 . 5 ] at 673 K. These values were higher than that of pure Pd and of the Nb 3 9 Ti 3 1 Ni 3 0 alloy that shows the highest Φ value in the Nb-Ti-Ni system. The present work strongly supported our previous proposal that multiphase alloys containing eutectic structures, which suppress a hydrogen embrittlement, are promising as novel hydrogen permeation membranes.