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Transformation hardening of steel sheet for automotive applications

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Abstract

Among high-strength steels, transformation hardening steels such as dual-phase (DP) steel and transformation-induced plasticity (TRIP) steel offer a superior relationship between tensile strength (TS) and elongation (El) on a commercial scale. As demand has grown for lighter-weight automobiles, so also has the demand for higher TS, lower yield ratio, and higher hole expansion ratio grown. Recently DP steel has been developed with precipitation hardening and grain refining by TiC. A new TRIP steel composed of 5Mn-2Si and control-rolled with niobium addition suggests the formation of retained austenite (γ R ) as much as 30% and TS × El = 3,000 kgf/mm2·%.

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References

  1. R. Sugiyama, J. JSTP., 46(534) (2005–7), p. 552.

    Google Scholar 

  2. S. Matsuoka et al., JFE Giho (16) (2007–6), p. 16.

  3. K. Matsudo et al., Nippon Kokan Giho, 84 (1980), pp. 14–20.

    Google Scholar 

  4. K. Seto, Proc. Symposium on Automotive Materials (Tokyo: ISIJ, 2006), pp. 45–52.

    Google Scholar 

  5. V.F. Zackay et al., Trans. ASM, 60 (1967), p. 252.

    CAS  Google Scholar 

  6. O. Matsumura, Y. Sakuma, and H. Takechi, Trans. ISIJ, 27 (1987), p. 570.

    CAS  Google Scholar 

  7. Y. Sakuma, O. Matsumura, and H. Takechi, Met. Trans. A, 22A (1991), p. 489.

    Article  CAS  Google Scholar 

  8. T. Furukawa and O. Matsumura, Netsu Shori (Heat Treatment in Japanese), 37(4) (1997), p. 204.

    CAS  Google Scholar 

  9. H. Takechi, Proc. of HSLA Steels 2000 (Xi’an, China: CSM, 2000), p. 31.

    Google Scholar 

  10. N. Kojima, J. JSTP., 46(534) (2005–7), p. 51.

    MathSciNet  Google Scholar 

  11. Y. Hirose, Proc. Symposium on Automotive Materials (Tokyo: Iron and Steel Institute of Japan, 2006), p. 31.

    Google Scholar 

  12. AISI: Steel Bumper System for Passenger Cars and Light Trucks Rev.2 (Washington, D.C.: American Iron and Steel Institute, 2003), chap. 3.4.

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Authors and Affiliations

  1. Fukuoka Institute of Technology, Wajiro-higashi 3-30-1, Higashi-ku, Fukuoka, 811-0295, Japan

    H. Takechi

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  1. H. Takechi
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Correspondence to H. Takechi.

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Takechi, H. Transformation hardening of steel sheet for automotive applications. JOM 60, 22–26 (2008). https://doi.org/10.1007/s11837-008-0160-6

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  • DOI: https://doi.org/10.1007/s11837-008-0160-6

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