A Criterion for the Change from Fast to Slow Regime of Cementite Dissolution in Fe-C-Mn Steels

材料科学技术（英文）, 2012, 28(8): 728-736.

A Criterion for the Change from Fast to Slow Regime of Cementite Dissolution in Fe-C-Mn Steels

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1.ArcelorMittal Research Maizieres, Voie Romaine, BP 30320, Maizieres-les-Metz 57283, France／ICMCB-CNRS, 87 avenue du Docteur Schweitzer, Pessac 33609, France

2.IM2NP-UMR CNRS 6242 ＆ Aix-Marseille University, Avenue Escadrille Normandie Niemen-Case 142-13397 Marseille Cedex 20, France

3.ArcelorMittal Research Maizieres, Voie Romaine, BP 30320, Maizieres-les-Metz 57283, France

关键词： C-Mn钢 , 渗碳体 , 溶解 , 标准 , 政权 , 温度范围 , 组合物 , 驱动力

A Criterion for the Change from Fast to Slow Regime of Cementite Dissolution in Fe-C-Mn Steels

Keywords： Phase transformation , Thermodynamics , Kinetics , Cementite dissolution , Steel ,

The present study clarifies the role of Mn in cementite on the driving force of cementite dissolution and the growth of austenite. From an experimental study, the effects of manganese composition and temperature on the cementite dissolution were shown. From a theoretical analysis based on thermodynamic and kinetics considerations, a criterion for the change from fast to slow regime of cementite dissolution was proposed. This criterion is in good agreement with the experimental results. It can be easily calculated and can define the composition and temperature ranges where the cernentite dissolution is slow or fast.

参考文献

[1]	M. Goune;O. Bouaziz;J.-M. Pipard .Study of the effect of cold deformation on the austenite formation[J].Revue de Metallurgie: Cahiers d'Informations Techniques,2006(10):465-471.

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A Criterion for the Change from Fast to Slow Regime of Cementite Dissolution in Fe-C-Mn Steels

A Criterion for the Change from Fast to Slow Regime of Cementite Dissolution in Fe-C-Mn Steels

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