Influence of Soaking Temperature on Microstructure of Multi-pass Compression Deformation for Low Carbon Steels  

作　　者：何燕霖 吴晓瑜 朱娜琼 张梅 林大为 李麟 

机构地区：[1]Department of Materials Science and Engineering Shanghai University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2011年第3期360-363,共4页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China(Nos.50971137 and 50934011)

摘　　要：The influence of soaking temperature on microstructure of high temperature multi-pass compression deformation for two low carbon steels(steel A:wC=0.032%and wMn=0.25%;steel B:wC=0.165%and wMn=0.38%)is studied on the thermal-mechanical simulator in order to rationalize the hot-rolling schedule of low-carbon steel and to promote the low-temperature heating technology.The results show that the microstructures of steel A are almost not affected by reducing soaking temperature,but the acicular ferrite forms in steel B when the soaking temperature is reduced from 1 200 to 1170℃,due to its smaller initial austenite grain size according to recrystallization kinetics theory.The influence of soaking temperature on microstructure of high temperature multi-pass compression deformation for two low carbon steels （steel A： wc=0.032% and WMn=0.25%; steel B： wc=0.165%and WMn=0.38%） is studied on the thermal-mechanical simulator in order to rationalize the hot-rolling schedule of low-carbon steel and to promote the low-temperature heating technology. The results show that the microstructures of steel A are almost not affected by reducing soaking temperature, but the acicular ferrite forms in steel B when the soaking temperature is reduced from 1200 to 1170℃, due to its smaller initial austenite grain size accordingto recrystallization kinetics theory.

关 键 词：soaking temperature multi-pass compression deformation low-carbon steel 

分 类 号：TG335[金属学及工艺—金属压力加工]