形变奥氏体在控冷过程中相变行为的研究  

RESEARCH ON DEFORMED AUSTENITE TRANSFORMATION DURING CONTROLLED-COOLING PROCESS

作　　者：朱丽娟[1] 吕义[2] 

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]长春轨道客车股份有限公司技术质量部,吉林长春130062

出　　处：《钢铁研究》2005年第5期18-22,共5页Research on Iron and Steel

基　　金：国家863计划资助项目(2001AA339030)

摘　　要：以超组元算法和LFG模型为热力学基础,以Cahn的相变动力学和Scheil叠加法为动力学基础,建立了连续冷却过程中奥氏体向铁素体、珠光体和贝氏体转变的相变行为的预测模型,研究了变形、冷却速率和终轧温度对相变的影响。Synopsis： A prediction model of phase transformation from thermo - deformed austenite to ferrite,pearlite and bainite is given in this paper. The model was developed on the thermodynamic basis of super - dement and LFG models and the kinetic basis of Cahn＇s transformation theory and Scheil＇s superposition rule. The effects of deformation, cooling rate and finish rolling temperature on phase transformation are discussed in this paper.

关 键 词：奥氏体相变 预测模型 变形 冷却速率 终轧温度 

分 类 号：TG335.11[金属学及工艺—金属压力加工]