摘要
对中锰钢在950~1200℃条件下分别进行15~120 min等温奥氏体化的热处理实验,研究其奥氏体晶粒长大行为。结果表明:随着加热温度的升高和保温时间的延长,奥氏体晶粒均会长大。当加热温度低于1100℃时,奥氏体晶粒长大缓慢,但是当加热温度高于1150℃时,奥氏体晶粒明显粗化。通过对实验数据进行线性回归,获得了实验钢的奥氏体晶粒长大动力学模型。
The behavior of austenite grain growth of medium manganese steel was investigated by heat treatment at temperature of 950-1200℃for 15-120 min,respectively.The results show that the size of austenite grain increases with the increase of heating temperatrue and holding time.When the heating temperature is lower than 1100℃,the austenite grain grows slowly.However,when the heating temperature is higher than 1150℃,the austenite grain is obviously coarsened.The kinetic model of the austenite grain growth of the experimental steel is obtained by linear regression of the experimental data.
作者
于帅
陶振
杜林秀
YU Shuai;TAO Zhen;DU Linxiu(Key Laboratoiy of Rolling Technology and Automation of Continuous Rolling,Northeastern University,Shenyang 110819,China)
出处
《热加工工艺》
北大核心
2020年第6期121-123,共3页
Hot Working Technology
基金
国家863计划重大项目(2015AA03A501)。
关键词
中锰钢
奥氏体
晶粒粗化
长大动力学
medium manganese steel
austenite
grain coarsening
growth kinetics
