在Nb40Ti30Ni30合金的初生相(Nb,Ti)和共晶相连线上制作Nb-Ti-Ni合金.研究表明,上述直线上的合金由初生相和共晶相构成,氢渗透度Ф随Nb浓度和初生相(Nb,Ti)体积分数的增大而升高,氢渗透合金的Nb浓度扩展至68 mol%.Nb68Ti17Ni15合金由74%(体积分数)的初生相(Nb,Ti)和26%(体积分数)的共晶相{(Nb,Ti)+TiNi}组成,氢渗透度最大Ф673K达到4.91×10-8mol H2m-1s-1Pa-0.5,是Nb40Ti30Ni30合金的氢渗透度Ф673K的2.5倍,纯钯金的氢渗透度Ф573K的3.5倍.
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