热变形参数对TA15再结晶晶粒尺寸的影响

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

EFFECT OF HEAT DEFORMATION PARAMETERS ON RECRYSTALLIZATION GRAIN SIZE FOR TA15 ALLOY

研究了TA15钛合金β区变形时变形量、变形温度、变形速率、冷却速度等参数对再结晶晶粒尺寸Dr的影响,结果表明:随变形量增加,晶粒尺寸呈线性下降,且有Dr=kDp(1-ε)的关系;1050℃温度以上随变形温度增加,晶粒尺寸增大;变形速率增加,晶粒尺寸减小;变形后水淬大于空冷的晶粒尺寸.

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