Effects of Alloying Elements on the Concentration Profile of Equilibrium Phases in Transformation Induced Plasticity Steel

材料科学技术（英文）, 2003, 19(3): 273-277.

^1, , ^2, , ^3, , ^4, , ^5,

1.Dept. Mater. Sci. & Eng., Shanghai University, 149 Yanchang Road, Shanghai 200072, China

2.Dept. MTM, Katholieke Universiteit Leuven, Kasteelpark Arenberg 44, B-3001 Leuven, Belgium

3.Dept. Mater. Sci. & Eng., Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200030, China

4.Laboratory for Iron and Steelmaking, Universiteit Gent, Technologiepark 9, B-9052 Zwijnaarde, Belgium

5.Shanghai Baosteel Research Institute, Fujin Road, Shanghai 201900, China

基金项目: the China-Belgium Bi- lateral Project(2001-242) This work is financially supported by the National Natural Sci- ence Foundation of China(50171038) The authors are thankful to Ms. Y.Zhou for her help in the experiments Science & Technology Commission of Shanghai municipality fund

Effects of Alloying Elements on the Concentration Profile of Equilibrium Phases in Transformation Induced Plasticity Steel

Keywords： Composition

With the two sublattices model, equilibrium compositions of ferrite (α) and austenite (γ) phases, as well as thevolume percent of austenite (γ) in different TRIP steels are calculated. Concentration profiles of carbon, manganese,aluminum and silicon in these steels are also estimated under the lattice fixed frame of reference so as to identifyif the equilibrium state is obtained. Through the comparison between the profiles after different time diffusion, thedistribution of elements in phases is exhibited and the complex effect due to the mutual interaction of the elementson diffusion is discussed.

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Effects of Alloying Elements on the Concentration Profile of Equilibrium Phases in Transformation Induced Plasticity Steel

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