锻造掺杂La_2O_3合金钼棒退火过程的组织演变和再结晶动力学  

MICROSTRUCTURE EVOLUTION AND STATIC RECRYSTALLIZATION KINETICS OF FORGING La_2O_3-DOPED Mo ALLOY

作　　者：苏晓[1] 高永军[1] 任宝江[1] 杨德武[1] 惠保卫[1] 蒙笠[1] 

机构地区：[1]金堆城钼业股份有限公司金属分公司,陕西西安710077

出　　处：《上海金属》2012年第6期7-10,共4页Shanghai Metals

摘　　要：对锻造掺杂La2O3合金钼棒在1 360～1 500℃之间的静态再结晶组织演变和动力学机制进行了研究。结果表明,再结晶分数与退火时间之间的关系可以用J-M方程来描述。根据动力学分析,可以计算出掺杂La2O3合金钼棒的再结晶激活能Qr值为166.949～173.545 kJ.mol-1。The microstructure evolution and static recrystallization kinetics at different annealing temperature ranged from 1 360 - 1 500 ℃ of forgingLa2O3-doped Mo alloy were researched. The experiment results demonstrated that the relationship between the annealing time and the fraction of recrystallization grains could be described by the J-M equation. Based on the kinetics analysis, the activation energy of recrystallization was calculated to be about 166. 949 -173. 545 kJ mol-1

关 键 词：掺杂La2O3 合金钼棒再结晶 动力学机制 再结晶激活能 

分 类 号：TG111.7[金属学及工艺—物理冶金]