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Development of 590MPa Grade Galvannealed TRIP Steel Sheets containing Low Silicon Contents for High Strength and Formability  

Chi, Kwang-Sub (Hyundai Hysco)
Kim, Yong-Hee (Hyundai Hysco)
Kim, Byoung-Il (Department of Materials Science and Metallurigical Engineering, Sunchon National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.16, no.6, 2008 , pp. 141-147 More about this Journal
Abstract
Hot-dip galvannealed sheet (GA) with high strength of 590MPa grade in tensile strength, has developed for automotive applications. However, for a successful application, the microstructure and galvannealing behavior of galvannealed TRIP steel sheets must be strictly controlled. High silicon contents steel has problems with weld-ability, zinc coating and reduction of retained austenite volume fraction after galvannealing process. The main purpose of this study is to solve the problem as indicated above.
Keywords
Trip steel; Microstructure; Retained austenite; High strength;
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1 O. Matsumura, Y. Sakuma and H. Tkechi, "Enhancement of Elongation by Retained Austenite in Intercritical Annealed 0.4C-1.5Si-O. 8Mn Steel," The Iron and Steel Institute Transaction, Vol.27, No.7, pp.570-579, 1987   DOI   ScienceOn
2 Y. Sakuma, O. Matsumura and H. Takechi, "Mechanical Properties and Retained Austenite in Intercritically Heat-treated Bainite-transformed Steel and Their Variation with Si and Mn Additions," Metallurgical and Materials Transactions, Vol.22, No.2, pp.489-498, 1991   DOI
3 A. J. DeArdo, J. E. Garcia, M. Hua and C. I. Garcia, "Microalloying and the Production of Advanced High Strength Steels on Continuous Galvanizing," The 3rd International Conference on Advanced Structural Steels Proceedings, pp.806-815, 2006
4 X. V. Eynde, J. P. Servais and M. Lamberigts, "Surfaci Oxide Maturation and Self-reduction : A New Process to Ensure Trip Steel Hot Dip Galvanizing," Galvetech 2004 Conference Proceedings, pp.361-372, 2004
5 R. L. Miller, "Volume Fraction Analysis of Phases in Textured Alloys," Transactions of American Society for Metals International Proceedings, Vol.61, pp.592-597, 1968
6 A. Miyasaka, "Recent Progress in Coated High Tensile Strength Steel for Automotive Use," Galvetech 2007 Conference Proceedings, pp.345-350, 2007
7 J. Mahieu, J. Maki, B. C. De Cooman and S. Claessens, "Phase Transformation and Mechanical Properties of Si-free CMnAl Transformation- induced Plasticity-aided Steel," Metallurgical and Materials Transactions, Vol.33A, No.8, pp.2573-2580, 2002
8 D. K. Matlock and J. G. Speer, "Design Considerations for the Next Generation of Advanced High Strength Sheet Steels," The 3rd International Conference on Advanced Structural Steels Proceedings, pp.774-781, 2006
9 A.-W. Zhang and L. Zheng, "Effect of Chemical Compositions and Cooling Process on Microstructures and Mechanical Properties of Advanced High Strength Steel for Automobile," The 3rd International Conference on Advanced Structural Steels Proceedings, pp.879- 884, 2006
10 I. Tsukatani, T. Kamei, S. Hashimoto and K. Hosomi, "Development of 100 kgf/mm exp 2 Grade Cold-Rolled Sheet Steel Containing Retained Austenite with Extra-High Ductility," Microalloyed HSLA Steels, pp.541-550, 1988
11 S. Traint, A. Pichler, K. Hauzenberger, P. Stiaszny and E. Werner, B. C. De Cooman (ed.), "TRIP-Aided High Strength Ferrous Alloys," International Conference Proceedings, pp.121-128, 2002