한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제16권6호
  • /
  • Pages.141-147
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  • 2008
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

차량구조용 고강도 고성형성 590MPa급 Si 저감형 변태유기소성 합금화 용융아연 도금강판의 개발

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

  • 지광섭 (현대하이스코 표면처리팀) ;
  • 김용희 (현대하이스코 연구개발팀) ;
  • 김병일 (순천대학교 재료금속공학과)
  • 발행 : 2008.11.01
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초록

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.

키워드

참고문헌

  1. A. Miyasaka, "Recent Progress in Coated High Tensile Strength Steel for Automotive Use," Galvetech 2007 Conference Proceedings, pp.345-350, 2007
  2. 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 https://doi.org/10.2355/isijinternational1966.27.570
  3. 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
  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. 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 https://doi.org/10.1007/BF02656816
  6. 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
  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. 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
  9. 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
  10. 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
  11. 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