钛微合金化无取向硅钢的相变规律研究  

Study on the phase transformation law of titanium microalloyed non-oriented silicon steel

作　　者：梁筱松 王鹏 陈松军 李烈军[2] 霍向东[1] Liang Xiaosong;Wang Peng;Chen Songjun;Li Liejun;Huo Xiangdong(School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China;School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China)

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《钢铁钒钛》2024年第5期193-198,共6页Iron Steel Vanadium Titanium

摘　　要：采用热模拟机测定了50W600和50W600-Ti两种试验钢的CCT曲线,研究了连续冷却下两种试验钢的相变规律及含钛钢中的析出规律。结果表明,50W600的相变温度在926~1047℃,相变温度区间随冷速增大而减小;50W600-Ti的相变温度在838~1048℃,相变温度区间随冷速变化较小。两种试验钢基体组织基本为铁素体,在高冷速下有少量渗碳体;50W600显微硬度变化不大,50W600-Ti的显微硬度在5℃/s冷速下出现峰值,该冷速下碳化钛粒子析出较为充分。The CCT curves of 50W600 and 50W600-Ti were measured by thermal simulator.The phase transformation of the two test steels under continuous cooling had been studied and precipitation behavior in titanium-containing steels was also observed.The results show that the phase transformation temperature of 50W600 is 926-1047℃,and the phase transformation temperature range decreases with the increase of cooling rate.The phase transformation temperature of 50W600-Ti is 838-1048℃,and cooling rate has little effect on temperature range.The structure of the two test steel matrices basically consists of ferrite,and there is a small amount of cementite under high cooling speed.The microhardness of 50W600 did not change significant with cooling rate,while the microhardness of 50W600-Ti peaked and the precipitation of titanium carbide particles was relatively sufficient at the cold rate of 5℃/s.

关 键 词：无取向硅钢 钛微合金化 冷却速度 析出物 

分 类 号：TF764[冶金工程—钢铁冶金] TG115[金属学及工艺—物理冶金]