Influence of Mn Content and Hot Deformation on Transformation Behavior of CMn Steels

LI Long;DING Hua;DU Linxiu;WEN Jinglin;SONG Hongmei;ZHANG Pijun

Journal of Iron and Steel Research International ›› 2008, Vol. 15 ›› Issue (2) : 51-0.

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Journal of Iron and Steel Research International ›› 2008, Vol. 15 ›› Issue (2) : 51-0.
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Influence of Mn Content and Hot Deformation on Transformation Behavior of CMn Steels

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Abstract

The hot deformation behaviors and the microstructural evolution of plain CMn steels with similar contents of C and Si but different contents of Mn have been investigated by compressive processing using Gleeble1500 mechanical simulator. Influence of Mn and hot deformation on continuous cooling transformation of steels has been studied. The experimental results showed that deformation in austenite region accelerated transformation process, and the extent is dependent on the hot deformation and cooling conditions. The hot deformation would promote transformation process, but the increase of transformation temperature is dependent on Mn contents. The results have also shown that the effect of deformation on ferrite transformation becomes more obvious with the increase of Mn content at relatively low cooling rate.

Key words

hot deformation / cooling rate / phase transformation / bainite / CMn steel

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LI Long, DING Hua, DU Linxiu, et al. Influence of Mn Content and Hot Deformation on Transformation Behavior of CMn Steels[J]. Journal of Iron and Steel Research International, 2008, 15(2): 51-0
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