The effect of rolling temperature on both two- and single-phase regions and annealing in a temperature range of 700–950°C on the microstructure and mechanical properties of Ti—5Al—4V—2Fe—1Mo alloy was investigated. The results indicated that the best balance of strength and ductility is obtained by rolling in the two-phase region due to the globularization of the alpha phase and increase in its volume fraction. After rolling in the two-phase region, the ductility of the specimens annealed at 700 to 800°C increased because of the finer size and globularized alpha phase, while the reduction in strength was attributed to a decrease in the alpha phase volume fraction. However, at 950°C, the strength increased and ductility dropped by the formation of acicular alpha phase due to an increase in the phase boundary area. Annealing and aging after rolling in the beta-phase region increased the strength and decreased the ductility, which is attributed to the formation of a secondary alpha phase. A combination of favorable yield strength (1113 MPa) and elongation (13.3%) was obtained through rolling at 850°C followed by annealing at 750°C and aging at 570°C.

研究了轧制温度在两相和单相区域以及700–950°C的温度范围内的退火对Ti-5Al-4V-2Fe-1Mo合金的组织和力学性能的影响。结果表明，由于α相的球状化和其体积分数的增加，通过在两相区域滚动获得了强度和延展性的最佳平衡。在两相区轧制后，由于尺寸更小和球状α相的缘故，在700至800°C退火的试样的延展性提高了，而强度降低则归因于α相体积分数的降低。然而，在950℃下，由于相边界面积的增加，通过形成针状α相，强度增加而延展性下降。在β相区域轧制后的退火和时效会增加强度，并降低延展性，这归因于第二α相的形成。通过在850℃下进行轧制，然后在750℃下进行退火并在570℃下进行时效，可获得良好的屈服强度（1113MPa）和伸长率（13.3％）的组合。