钛合金组织特征参数与拉伸性能预测

The Structure Parameters and Mechanical Properties Prediction for Titanium Alloy

摘要:

研究了TA15钛合金b 区热变形时，变形温度、变形量、变形速率、冷却方式等工艺参量对片状组织特征参数b晶粒尺寸D、a 集束尺寸d、a片厚b的影响，以及片状组织特征参数与力学性能的关系。利用多元回归分析得到了强度、塑性与3个特征参数D、d、b的定量关系式，通过这种定量关系可以预测力学性能。

Abstract:

The effects of process parameters, such as deformation temperature, strain, strain rate and cooling condition on structure parameters (b grain size D, a-colony size d, a-lamina thickness b), and the relationship between lamella structure parameters and mechanical properties were investigated during b field hot deformation for TA15 titanium alloy. A quantitative relationship between structure parameters and mechanical properties was presented by multi-element regress analysis, and the mechanical properties could be predict by using above mentioned relationship.