摘要
研究了Ti-15Mo合金在不同退火处理条件下的再结晶行为,构建合金的再结晶动力学模型,计算其再结晶激活能。结果表明:随着退火温度的增加,合金的再结晶形核孕育期时间缩短,再结晶速度提高;随着退火时间的延长,再结晶晶粒长大速度在开始阶段较快,随后随着动力学条件的减弱,长大速度有所下降。采用阿弗拉密(Avrami)方程描述了不同温度下Ti-15Mo的再结晶动力学模型,应用Arrhenius方程,推算出Ti-15Mo的再结晶激活能为145.68 kJ/mol。
The recrystallization behavior of Ti-15 Mo alloy under different annealing conditions was studied, and the recrystallization kinetic model of the alloy was constructed, and its recrystallization activation energy was calculated. The results show that with the increase of annealing temperature, the recrystallization nucleation time of the alloy is shortened and the recrystallization speed is increased. With the increase of annealing time, the growth rate of recrystallized grains is faster in the initial stage, and then decreases slightly due to the weaken of kinetic conditions. The model of recrystallization kinetics of the Ti-15 Mo alloy at different temperature is described by Avrami equation, and the recrystallization activation energy of the Ti-15 Mo alloy is calculated as 145.68 kJ/mol by using the Arrhenius equation.
作者
向柳
辛社伟
毛小南
杜宇
周伟
李倩
蔡建华
XIANG Liu;XIN She-wei;MAO Xiao-nan;DU Yu;ZHOU Wei;LI Qian;CAI Jian-hua(School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;Northwestern Institute for Nonferrous Metal Research,Xi’an 710016,China)
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2020年第10期137-142,共6页
Transactions of Materials and Heat Treatment
基金
装备预研重点实验室基金(6142902190501)。
关键词
Ti-15Mo合金
等温退火
再结晶
动力学
激活能
Ti-15Mo alloy
isothermal annealing
recrystallization
kinetics
activation energy
作者简介
向柳(1998-),男,硕士研究生,主要研究方向为钛合金,E-mail:910938210@qq.com;通信作者:辛社伟(1978-),男,教授,主要研究方向为钛合金及其加工,E-mail:nwpu_xsw@126.com。
