The constitution and its effect on properties of elastic Nb-base alloy Nb-40Ti-5.5Al were examined by means of metallography,electron microscopy,X-ray dif-fraction analysis of chemically extracted phases and electron diffraction of thinfoil.

• 本文用金相、电镜、电解分离及X射线相分析、金属薄膜电子衍射等方法；研究了铌基弹性合金Nb-40Ti-5.；5Al的组织结构；及其对性能的影响