对不同Mo含量β单相区锻造的Ti-Mo合金在相变点以上进行固溶处理,然后对合金进行显微组织分析和力学性能测试.结果表明:Ti-1Mo合金和Ti-2Mo合金主要由等轴的α相组成,Ti-4Mo合金主要由针状六方马氏体α '相和原始β晶界组成,当合金Mo含量超过10％(质量分数)时,合金主要由等轴的β相组成.晶粒尺寸统计结果显示:晶粒尺寸与固溶时间呈指数关系;在固溶时间一定的条件下,晶粒尺寸随固溶温度的升高而增大,随合金中Mo含量的增加而明显减小.另外Ti-Mo合金的强度随晶粒尺寸的减小而提高,但合金的塑性变化不大,最后对影响合金强化的机理进行了探讨.
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