REVIEW AND PROSPECT OF HIGH STRENGTH LOW ALLOY TRIP STEEL
来源期刊：Acta Metallurgica Sinica2003年第6期
论文作者：B.C.De Cooman Z.Y.Xu Y.L.He X.C.Wei L.Li P.Wollants
Key words：HSLA TRIP steel; retained austenite; dynamic mechanical property; thermodynamics; kinetics;
Abstract: Research status of high strength low alloy TRIP (transformation induced plasticity)steels for automobile structural parts is briefly described. Composition and microstructure factors especially the morphology, size and volume fraction of retained austenite,which largely influence the strength and ductility of the steel, are reviewed and discussed one after another. Modelling of the inter-critical annealing and martempering processes as well as the designing of the TRIP steel aided by commercial software are introduced. Some special aspects of the dynamic mechanical properties of TRIP steel are firstly reported.
B.C.De Cooman1，Z.Y.Xu2，Y.L.He3，X.C.Wei3，L.Li3，P.Wollants4
(1.Dept. Metallurgy and Materials Science, Universiteit Gent, Belgium;
2.Dept. Mat. Sci. & Eng., Shanghai Jiaotong University, Shanghai 200030, China;
3.School of Mat. Sci. & Eng., Shanghai University, Shanghai 200072, China;
4.Dept. MTM, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium)
Abstract:Research status of high strength low alloy TRIP (transformation induced plasticity)steels for automobile structural parts is briefly described. Composition and microstructure factors especially the morphology, size and volume fraction of retained austenite,which largely influence the strength and ductility of the steel, are reviewed and discussed one after another. Modelling of the inter-critical annealing and martempering processes as well as the designing of the TRIP steel aided by commercial software are introduced. Some special aspects of the dynamic mechanical properties of TRIP steel are firstly reported.
Key words:HSLA TRIP steel; retained austenite; dynamic mechanical property; thermodynamics; kinetics;
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