对Ti-4Al-4.5Mo合金经不同同溶温度淬火处理后的相组成进行了分析.结果表明,当合金在相变点以上温度淬火后,可以获得hcp结构α'马氏体;随固溶温度降低,淬火后斜方α"马氏体出现,并在一定的温度范围内与α'马氏体共存;在800℃淬火,α"马氏体消失,合金由α和β相构成;α"马氏体显著降低β转变组织的硬度.EDS分析表明,Mo含量并不是决定马氏体类型的唯一因素.
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