采用Thermo-Calc和经典动力学理论对2组碳、氮含量的中碳V-N微合金化钢分别进行了热力学和动力学分析,研究了V(C,N)在形变奥氏体中的析出规律.结果表明:在1000～800℃温度区间变形时,形变储能△G的存在导致V(C,N)的形变诱导析出;当氮的质量分数增加0.005%时,V(C,N)的析出开始时间(5%析出量)缩短近1个数量级;当氮的质量分数较高时(大于0.01%),碳含量对V(C,N)在奥氏体中析出行为的影响几乎可以忽略.
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