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Development of As-Rolled Dual Phase Steel Obtained by Accelerated Cooling to Extra-Low Coiling Temperature
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Abstract
As-rolled dual phase steels containing small amounts of alloy elements have been developed by accelerated cooling to extra low coiling temperature on hot runout table.
This manufacturing process, called ICQ method, is characterized by three step cooling pattern together with the controls of finishing and coiling temperatures.
It is economical because of using less alloy element than other methods. The dual phase steels manufactured by this method exhibit excellent formability and high bake hard-enability with small variation in properties. They have been successful in application to most of the auto-parts, especially to wheel disc with large weight saving.
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Authors
- Shigeki Hamamatsu - Kashima Steel Works, Sumitomo Metal Industries, Ltd
- Seiichi Sugisawa - Kashima Steel Works, Sumitomo Metal Industries, Ltd
- Kazutoshi Kunishige - Central Research Laboratories, Sumitomo Metal Industries, Ltd
- Masashi Takahashi - Central Research Laboratories, Sumitomo Metal Industries, Ltd
- Noriaki Nagao - Central Research Laboratories, Sumitomo Metal Industries, Ltd
Citation
Hamamatsu, S., Sugisawa, S., Kunishige, K., Takahashi, M. et al., "Development of As-Rolled Dual Phase Steel Obtained by Accelerated Cooling to Extra-Low Coiling Temperature," SAE Technical Paper 820015, 1982, https://doi.org/10.4271/820015.Also In
References
- Furukawa T. Morikawa H. Endo M. Tetsu-to-Hagane 65 1979
- Coldren A.P. Tither G. “Development of a Mn-Si-Cr-Mo As-Rolled Dual Phase Steel” J. of Metals 29 4 6 1978
- Matsudo K. Osawa K. Sakah M. Shimomura T. Yoshida M. “Press Formability of High Strength Hot Rolled Steel Sheets with Dual Phase Structure” J. of JSTP 21 237 1980
- Yamauchi N. Taka T. Japan Welding Society, RW-166-79 1979
- Rashid M.S. Rathke A.E. “Weld Associated Localized Necking during Fubrication of Dual Phase Steel Wheel Rims” SAE Trans., paper 810026 February 1981
- Yamauchi N. Taka T. Kunishige K. Nagao N. Tetsu-to-Hagane 67 13 S1191 1981