利用热膨胀相变仪,研究了860～950℃不同奥氏体化温度对10Ni3MnCuAl钢贝氏体连续转变动力学的影响.结果表明,奥氏体化温度越高,奥氏体晶粒越粗大,贝氏体连续转变起始温度(Bs)和50%转变温度(Bm)越低,但贝氏体转变终了温度(Br)几乎不变,并且奥氏体化温度越高,贝氏体转变速率峰向低温移动,贝氏体转变最大速率由相变驱动力和扩散速率共同决定,其中相变驱动力是主要影响因素.
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