Modeling of Intercritical Heat Treatment of DP and TRIP Steels

作     者：REGERMihaly VEROBalazs CSEPELIZsolt PANJiansheng 

作者机构：BudapestPolytechnicBudapestHungary BayZoltanFoundationInstituteforMaterialsandtechnologyBudapestHungary DunaferrCo.InnovationManagementDunaujvarosHungary ShanghaiJiaoTongUniversityShanghaiChina 

出 版 物：《材料热处理学报》 (Transactions of Materials and Heat Treatment)

年 卷 期：2004年第25卷第5B期

页      面：710-715页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0704[理学-天文学] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

基　　金：support of Hungarian Ministry of Education and TET Foundation(CHN-25/03 China-Hungary)is greatly acknowledged 

主　　题：双相钢 TRIP钢 临界状态 热处理 

摘      要：The final microstructure of DP and TRIP assisted steels can evolve after hot working (hot rolling) or during post heat treatment process. In the formation of the final structure a number of different technological parameters have important roles, e.g. end temperature of rolling, cooling rates, temperature of intercritical annealing, etc. As a result of the individual factors and their combinations a lot of product technology routes are feasible. The effect of the different combinations of these technological parameters on the microstructure can be mapped by the special Jominy end-quench test (so called intercritical Jominy end-quench test) described in this paper. Unlike the traditional Jominy test, in this case there is a partial austenizing between A! and A3 temperatures which results in a given amount of ferrite in the microstructure before quenching. The method developed can be applied for mapping DP and TRIP assisted steels’ microstructure in a wide range of technological parameters. The analysis of measured and calculated data can help us find the technological parameters optimal from the microstructural point of view.