采用水冷铜坩埚真空感应熔炼炉及氧化锆陶瓷壳型,制备Ti-12Nb-12Zr-2Mo合金人体假肢关节精密铸件,分别进行真空退火和淬火处理.利用光学显微镜XRD,TEM观察和分析微观组织,在25,0,-25,-50℃下测试材料抗拉性能和弹性模量.结果表明:铸态和退火状态下合金的组织均为α+β相组成,淬火状态下合金组织由β+α′相组成.室温下铸态合金具有较高的抗拉强度和伸长率,淬火处理使强度增加、伸长率降低；随着试验温度的降低合金的强度升高,伸长率降低,弹性模量保持在70～73 GPa.
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