摘要
利用DIL805A热膨胀仪记录了增碳降钒前后热轧态54SiCrV钢在不同的加热速度下(0.1、1、3、10和50℃/)的线膨胀量,获得了不同加热速度下的热膨胀曲线和奥氏体体积转变分数曲线,研究了加热速度对奥氏体化的影响。研究结果表明:54SiCrV钢在连续加热过程中的奥氏体转变可分为3个阶段:珠光体向奥氏体转变、铁素体向奥氏体转变及奥氏体的成分均匀化。并且随着加热速度提高,相变临界温度提高。
The linear expansion of hot rolled 54 sicrv steel at different heating rates(0.1,1,3,10 and 50℃/)before and after carbon addition and vanadium reduction was recorded by DIL805A thermal dilatometer.The thermal expansion curves and austenite volume transformation fraction curves at different heating rates were obtained.The effect of heating rate on austenization was studied.The results show that the austenite transformation of 54SiCrV steel during continuous heating can be divided into three stages:pearlite to austenite transformation,ferrite to austenite transformation and austenite composition homogenization.The critical temperature of phase transition increases with the increase of heating rate.
作者
李翔
王天宇
宋建成
黄道龙
廖振成
黄贞益
LI Xiang;WANG Tianyu;SONG Jiancheng;HUANG Daolong;LIAO Zhencheng;HUANG Zhenyi(Zenith Steel Group Company Limited,Changzhou 213011,Jiangsu,China;School of Metallurgical Engineering,Anhui University of Technology,Ma'anshan 243000,Anhui,China)
出处
《金属功能材料》
CAS
2023年第6期114-122,共9页
Metallic Functional Materials
关键词
增碳降钒
54SiCrV钢
热膨胀曲线
转变速率
奥氏体化
carbonization and vanadium reduction
54SiCrV steel
thermal expansion curve
transition rate
austenitization
