Bainite transformation of low carbon Mn-Si TRIP-assisted multiphase steels: Influence of silicon content on cementite precipitation and austenite retention

被引：0
|
作者：
Jacques, P. [1 ]
Girault, E. [1 ]
Catlin, T. [1 ]
Geerlofs, N. [1 ]
Kop, T. [1 ]
van der Zwaag, S. [1 ]
Delannay, F. [1 ]
机构：
[1] Universite Catholique de Louvain, Louvain-la-Neuve, Belgium
来源：
Materials Science and Engineering A | 1999年 / 273卷
关键词：
Austenite - Bainitic transformations - Composition effects - Ductility - Manganese alloys - Plasticity - Precipitation (chemical) - Reaction kinetics - Silicon - Strength of materials;
D O I：
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学科分类号：
摘要：
Studies dealing with TRIP-assisted multiphase steels have emphasized the crucial role of the bainite transformation of silicon-rich intercritical austenite in the achievement of a good combination of strength and ductility. The present work deals with the bainite transformation in two steels differing in their silicon content. It is shown that both carbon enrichment of residual austenite and cementite precipitation influences the kinetics of the bainite transformation. A minimum silicon content is found to be necessary in order to prevent cementite precipitation from austenite during the formation of bainitic ferrite in such a way as to allow stabilization of austenite by carbon enrichment.
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页码：475 / 479
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