研究连续快速加热条件下亚稳βTi-1.5%Al-6.8%Mo-4.5%Fe钛合金剧烈冷变形对其显微组织、相组成和拉伸性能演变的影响。轧制态合金具有准非晶单相β结构,其电阻率与温度的关系呈现异常;将轧制态合金在室温下冷却暴露48 h,由于等温ω相的析出,电阻率与温度的关系恢复正常。随后,将合金以加热速率为5°C/s进行快速热处理,导致回复和再结晶发生。测定和讨论了不同处理后合金的拉伸性能。 The effect of rapid cold deformation on the microstructure, phase composition and tensile properties of metastable β Ti-1.5% Al-6.8% Mo-4.5% Fe titanium alloy under continuous rapid heating was investigated. The as-rolled amorphous alloy has the quasi-amorphous single-phase β structure, and its resistivity is abnormal with temperature. After the alloy is cooled and exposed at room temperature for 48 h, the relationship between resistivity and temperature is restored due to the precipitation of the isothermal ω phase normal. Subsequently, the alloy was subjected to a rapid heat treatment at a heating rate of 5 ° C / s, resulting in recovery and recrystallization. Tensile properties of the alloys after different treatments were measured and discussed.