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对经过普通退火和固溶时效处理的Ti-7Al-4Mo合金的组织与性能进行研究。结果表明,炉冷时退火温度从780℃升高到790℃,强度下降,塑性变化不明显;继续升高到800℃时,强度和塑性变化不明显;空冷时,退火温度由740℃提高到790℃时,强度下降约3%,塑性略有提高。固溶时效处理可以显著提高强度,但塑性下降幅度较大;随着固溶温度的升高,强度显著提升,塑性显著下降;随时效温度的升高,抗拉强度显著降低,屈服强度下降较小,塑性明显提高。
The microstructure and properties of Ti-7Al-4Mo alloy after normal annealing and solution aging treatment were studied. The results show that when the temperature is raised from 780 ℃ to 790 ℃, the strength decreases and the plasticity does not change obviously. The strength and ductility do not change obviously when the temperature rises to 800 ℃. When the air cooling is carried out, the annealing temperature increases from 740 ℃ 790 ℃, the strength decreased by about 3%, a slight increase in plasticity. The solution aging treatment can significantly improve the strength, but the plasticity decreases a lot. With the increase of solution temperature, the strength increases significantly and the plasticity decreases significantly. With the aging temperature increases, the tensile strength decreases significantly and the yield strength decreases Small, plastic significantly improved.