82B高碳钢热变形奥氏体再结晶行为研究  

Research on Austenite Recrystallization Behaviors of 82B High Carbon Steel During Hot Deformation

作　　者：邱春林[1] 吴香菊[2] 齐克敏[1] 袁立忠[3] 吴水龙[3] 覃业军[3] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004 [2]沈阳黎明航空发动机(集团)有限公司,辽宁沈阳110043 [3]湖南华菱湘潭钢铁有限公司,湖南湘潭411101

出　　处：《热加工工艺》2006年第20期29-31,共3页Hot Working Technology

摘　　要：用Gleeble2000热模拟试验机对82B钢奥氏体再结晶进行了研究。结果表明,82B钢以0.5s-1的应变速率在950℃及其以上温度进行变形时将发生动态再结晶,950℃以下发生动态回复;以2s-1的应变速率在1000℃以上进行变形时发生动态再结晶,1000℃及其以下仅发生动态回复;在所有试验温度以10s-1和30s-1的应变速率变形时,均仅发生动态回复。恒温双道次压缩时,在3￣200s的间隔时间内均发生了静态再结晶。The austenite recrystallization behaviors of 82B high carbon steel were investigated by Gleeble 2000 thermal-mechanical simulator. The results show that dynamic recrystallization occurs in deformed austenite of 82B steel at strain rate 0.Ss^-1 at 950℃ and above , dynamic recovery only occurs below 950℃ .Dynamic recrystallization occurs at strain rate 2s^-1 above 1000℃, and dynamic recovery only occurs at 1000℃ and below.Dynamic recovery only occurs at strain rate 10 s^-1 and 30 s^-1 on all test temperature. Static recrystallization all occurs in the range of 3- 200 s interval time when double-pass compression test at constant temperature is conducted.

关 键 词：82B高碳钢 热模拟 回复 再结晶 

分 类 号：TG111.7[金属学及工艺—物理冶金]