用Gleebk 3800热力模拟实验机研究了变形条件对铌微合金钢动态再结晶行为的影响.根据应变硬化率和应力的关系,确定了动态再结晶的临界应变,得出εC/εP、σC/σP以及形变激活能与铌含量的关系,并且回归出相应的数学模型,建立了铌微合金钢的热变形方程式.
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