Modeling of Intercritical Heat Treatment of DP and TRIP Steels
来源期刊：材料热处理学报2004年第5期
论文作者：Pan Jiansheng CSEPELI Zsolt REGER Mihaly VERO Balazs
关键词：dual-phase steel; TRIP steel; Jominy End Quench Method; modeling;
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 anstenizing between A1 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.
Pan Jiansheng1，CSEPELI Zsolt2，REGER Mihaly3，VERO Balazs4
(1.Shanghai Jiao Tong University, Shanghai, China;
2.Dunaferr Co., Innovation Management, Dunaujvaros, Hungary;
3.Budapest Polytechnic, Budapest, Hungary;
4.Bay Zoltan Foundation, Institute for Materials and technology, Budapest, Hungary)
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 anstenizing between A1 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.
关键词:dual-phase steel; TRIP steel; Jominy End Quench Method; modeling;
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