Continuous Cooling Transformation Behavior of D460 Ship Plate Steel

Abstract:

Through the thermal mechanical simulation experiment，combined with the metallographic analysis and microhardness test on the Nb-Ti micro-alloyed steel for the austenitic continuous cooling process. The results shows that: with the increasing of the cooling rate, the phase transformation starting and ending temperature decrease and the ferrite content was decreased at room temperature. In less than 5°C/s low cooling speed region, with the increasing of the cooling rate, the grain size of tested steel obviously increases; In more than 17°C/s high cooling speed region, the grain size and vickers hardness of tested steel change and tends to be smoothly.

• Periodical: Applied Mechanics and Materials (Volumes 184-185)
• Pages: 920-923
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.184-185.920
• Online since: June 2012
• Authors: Jun Cheng Bao, Bao Qun Ning, Jie Zhao, Jian Ping Li
• Keywords: Continuous Cooling Transformation, D460 Steel, Static CCT Curve, Thermal Simulation

References

[1] Sun B R, Wang Y M, Chen Y. Production of Heavy and Medium Plate. Beijing: Metallurgical Industry Press, (1993)

[2] Wang Y M, Li M Y, Wei G. Controlled Rolling and Controlled Cooling of Steels. Beijing: Metallurgical Industry Press, (1995)

[3] XU Y B,YU Y M,WU D. et al submitted to Journal University of Science and Technology Beijing，2010，32(8) :1004

[4] GUO H, YU Y N. submitted to Journal University of Science and Technology Beijing，1992, 16(4): 667

[5] CHEN J J, JIANG M F, LI K. submitted to Journal Iron and Steel, 2007, 42(2):68