Optimization of Mechanical Properties of High Strength TRIP Steels

Lin Li; Yi Gao; Yan Lin He; Wei Shi; Mei Zhang; Xiao Gang Lu

doi:10.4028/www.scientific.net/MSF.783-786.854

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HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Optimization of Mechanical Properties of High...

Optimization of Mechanical Properties of High Strength TRIP Steels

Abstract:

Traditional TRIP steels have been developed for several decades, however, when thestrength reaches 1000MPa, the elongation rate is difficult to be raised over 20%. In the light ofthermodynamics, phase diagram of TRIP steel containing rather high amount of Al is optimized andthe attractive function of Al, which largely increases carbon solubility in austenite is found. As highercarbon content leads to higher stability of austenite and better TRIP effect of TRIP steel, newcomposition of high strength TRIP steel with high amount Al is designed as well as heat treatmentprocesses. The newly developed TRIP steel exhibits superior mechanical properties and the productof its strength and plasticity is higher than 30000 MPa%, i.e., the target of the mechanical propertiesof 3th generation automotive steel.

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Materials Science Forum (Volumes 783-786)

Pages:

854-858

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.854

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Online since:

May 2014

Authors:

Lin Li, Yi Gao, Yan Lin He, Wei Shi, Mei Zhang, Xiao Gang Lu

Keywords:

Al Addition, Austenite Stability, Superior Mechanical Property, Thermodynamic, TRIP Steel

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References

[1] A. Zarei Hanzaki, P. D. Hodgson and S. Yue, Metall. Trans., 28A(11)(1997)2405.

Google Scholar

[2] M. D. Meyer, D. Vanderschueren and B. C. De Cooman, ISIJ Int., 139(8)(1999)813.

Google Scholar

[3] A. Pichler and P. Stirszny, Steel Res., 70(11)(1999)459.

Google Scholar

[4] M. Bouet, J. Root, E. Es-Sadiqi and S. Yue, Mat. Sci. Forum., 284(1998)319.

Google Scholar

[5] K. Eberle, P. Cantinieaux and P. Hariet, Steel Res., 70(6)(1999)233.

Google Scholar

[6] L. Li, B. C. De Cooman, P. Wollants, Y. L. He and X. D. Zhou, Mater. Sci. ＆ Techno1. 20 (2) (2004)135.

Google Scholar

[7] L. Li, S.G. Huang, L. Wang, Y.L. He, J. Vleugels, O. Van der Biest, Front. Mater. Sci., China, 3(1)(2009)33.

Google Scholar

[8] O. Redlich and A.T. Kister, Ind. Eng. Chem. 40 (1948), 345-348.

Google Scholar

[9] Bo Sundman and John Ågren, Journal of Physics and Chemistry of Solids, 42 (4) 1981, 297-301.

Google Scholar

[10] K.C.H. Kumar and V. Raghavan, Journal of Phase Equilibria, 12 (3) (1991), 275-286.

Google Scholar

[11] P. Gustafson, A thermodynamic evaluation of the Fe-C system, Scandinavian Journal of Metallurgy, 14 (1985), 259.

Google Scholar

[12] David K. Matlock, John G. Speer, Third Generation of AHSS, Microstructure Design Concepts,A. Haldar, S. Suwas, and D. Bhattacharjee (eds. ), Microstructure and Texture in Steels, © Springer 2009, 185-205.

DOI: 10.1007/978-1-84882-454-6_11

Google Scholar