[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.14773/cst.2011.10.5.162

Development of Al-added High Strength Galvannealed Daul Phase Steel Sheets

Kim, Dong-Eun (Hyundai HYSCO)
Han, Young-Chul (Hyundai HYSCO)
Ko, Heung Seok (Chonbuk National University)
Kim, Jong-Gi (Chonbuk National University)
Moon, Man-Been (Hyundai HYSCO)

Publication Information

Corrosion Science and Technology / v.10, no.5, 2011 , pp. 162-166 More about this Journal

Abstract

Effects of chemical compositions and manufacturing conditions on mechanical properties and microstructures were investigated in order to obtain galvannealed high strength dual phase steel sheets with superior mechanical properties and coating properties. An intercritical annealing between Ac1 and Ac3 was conducted to produce the DP (dual phase) steel sheets, followed by quenching to room temperature. The purposes of Al addition are to reduce the iron oxidation with chemical composition (Si, Mn etc.) and to improve the wettability by liquid zinc. The present study will focus on the characterization for making dual phase steel sheets and enhancing the galvanizability of Al added DP steel sheets about continuous annealing line in CGL.

Keywords

DP steel sheets; AHSS; Galvannealed; heat treatment; low yield ratio;

Citations & Related Records

Reference

1	M. B. Moon and W. B. KIM, GALVATECH '07, p. 363 (2007).
2	M. Sakurai, L. W. Zhang, Y. Tajiri, and T. Kondo, Tetsu-to Hagane, 77, 1 (1998).
3	A. Komatsu, A. Ando, and T. Kittaka, Nisshin Seiko Giho, 77, 1 (1998).
4	N. Fujibayashi, Y. Tobiyama, and K. Kyono, CAMP-ISIJ, 10, 609 (1997).
5	T. Ooi, A. Takase, M. Ohmura, and S. Shimada, CAMPISIJ, 7, 603 (1994).
6	Y. Suzuki and Y. Kyono, Hyomen-gijutu, 55, 48 (2004).
7	Y. Suzuki, Y. Sugimoto, and S. Fujita, Hyomen-gijutu, 58, 183 (2007).
8	J. G. Speer, A. M. Streicher, D. K. Matlock, F. Rizzo, and G. Krauss, ISS/TMS, 505 (2003).
9	K. W. Andrews, J. Iron and Steel Inst., 203, 721 (1965).
10	B. Mintz, Int. Rev., 46, 169 (2001). DOI ScienceOn
11	C. D. Horvath and J. R. Fekete, Proceedings of International Conference on Advanced High Strength Sheet Steels for Automotive Applications, p. 3, AIST, Warrendale, USA (2004).
12	Technical Transfer Dispatch #6-Body Structure Materials, UlSAB-AVC Consortium (2001).