论文部分内容阅读
基于热模拟压缩试验,研究了变形温度对TC4合金中温塑性变形过程中流动行为和微观组织演变的影响。热模拟压缩试验参数为560～660℃、0.1～50.0 s-1。结果表明,随着变形温度的升高,TC4合金的流动应力逐渐降低;随着应变速率的升高,变形温度对TC4合金流动应力的影响幅度逐渐降低;TC4合金中温塑性变形时的温度敏感性指数随应变和应变速率的增加而降低;随变形温度的升高,TC4合金微观组织均匀程度提高,α晶粒逐渐清晰可辨。
Based on the thermal simulation compression test, the effect of deformation temperature on the flow behavior and microstructure evolution during TC plastic deformation in TC4 alloy was studied. Thermal simulation compression test parameters of 560 ~ 660 ℃, 0.1 ~ 50.0 s-1. The results show that the flow stress of TC4 alloy decreases gradually with the increase of deformation temperature. With the increase of strain rate, the influence of deformation temperature on the flow stress of TC4 alloy decreases gradually. The temperature sensitivity of TC4 alloy during mid-temperature plastic deformation The index decreases with the increase of strain and strain rate. With the increase of deformation temperature, the microstructure of TC4 alloy increases homogeneously, and the α grains gradually become clear and distinct.