以一种新型Ti-Al-Mo-V-Cr-Sn系高强度钛合金为研究对象,通过透射电镜观察合金经不同温度固溶和时效处理的微观组织,并利用拉伸试验机对合金力学性能进行分析。结果表明:合金经900℃×1 h固溶处理可以获得β相,且随时效处理进行,合金逐渐析出α相,时效温度决定了合金析出相的种类和数量;随时效温度升高,合金中的α相逐渐转变为β相,α相体积分数减小,而α相宽度增加且α相逐渐变粗变长,随时效温度升高,合金抗拉应力和屈服应力均减小。 A new type of Ti-Al-Mo-V-Cr-Sn high-strength titanium alloy was taken as the research object. The microstructure of the alloy after solution treatment and aging treatment at different temperatures was observed by transmission electron microscopy. Performance analysis. The results show that the β phase can be obtained by solution treatment at 900 ℃ for 1 h, and the α phase precipitates gradually with the aging treatment. The aging temperature determines the type and amount of the precipitated phase. With the aging temperature increasing, Α phase gradually changes to β phase, and the volume fraction of α phase decreases, while the α phase width increases and the α phase becomes thicker and longer. As the aging temperature increases, the tensile stress and yield stress decrease.