钛合金组织特征参数与拉伸性能预测

1.北京航空材料研究院,北京,100095

2.北京航空材料研究院,北京,100095

3.北京航空材料研究院,北京,100095

4.北京航空材料研究院,北京,100095

5.北京航空材料研究院,北京,100095

基金项目: 国家高技术研究发展计划(863计划)(2002AA305107) 国家重点基础研究发展规划(973计划)

The Structure Parameters and Mechanical Properties Prediction for Titanium Alloy

研究了TA15钛合金β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β晶粒尺寸D、α集束尺寸d、α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.

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