Study on Thermal Deformation and Recrystallization Behavior of Cu-P Weathering Steel

Abstract:

Under different deformation temperatures and strain rates, the thermal deformation process of Cu-P weathering steel was studied using Gleeble1500D-type thermal simulator. After the high temperature rheopectic curves at different conditions and thermal deformation equation was got, the dynamic recrystallization diagram of the steel was plotted. The results show that the thermal deformation activation energy of the steel is 345kJ/mol, and the dynamic recrystallization diagram of the steel consisits of three parts as completely dynamic recrystallization zone, partially dynamic recrystallization zone and non-dynamic recrystallization zone.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 1228-1231
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.1228
• Online since: July 2011
• Authors: Xin Zhang, Yi Xiong, Rong Hui He, Zhi Qiang Li, Ya Wei Lin
• Keywords: Cu-P Weathering Steel, Deformation Temperature, Dynamic Recrystallization Diagram, Strain Rate, Thermal Deformation Equation

References

[1] Zhang Quan cheng, Wu J S. Present situation of research and development of weathering steel [J]. Materials Review (in Chinese),2000,14(7):12-13

[2] Ding Yuan Fa, Fan G S. Corrosion rule of low alloy steel in the marine environment[J]. Iron and Steel (in Chinese), 1992,27(11):33-34

[3] Wang Chuan Ya, Qi Z F. Chemical constitution and property of weathering steel[J]. Special Steel (in Chinese), 1997,1:13-l9

[4] Zhang Chun ling, Cai Da yong, Wang Yu hui. Effects of deformation and Mo, Nb, V, Ti on continuous cooling transformation in Cu-P-Cr-Ni-Mo weathering steel[J].Materials Characterization, 2008, 59:1638-1642

DOI: 10.1016/j.matchar.2008.03.003

[5] Wu Hong yan, Shen Kai zhao, Du Lin xiu. Thermal deformation behavior of high temperature for low-price weathering steel[J].Journal of Iron and Steel Research ((in Chinese),2006,18(10):54-58

[6] Cheng Xiao Ru, Li H X, Ge M Q. Study on the dynamic recrystallization of high temperature deformation for pipeline steel X65. Acta Metallurgica Sinica (in Chinese),1997,33(12):1275-1280

[7] Peng Kai ping, Chen Wen zhe, Qian Kuang wu. Microstructure of 18-8 austenitic stainless steel after dynamic strain-aging[J].Transactions of Materials and Heat Treatment (in Chinese), 2005,36(5):41-46

[8] A.Laasorui, J.J. Jonas. Prediction of flow stress at high temperature and strain rates [J]. Metla1.Trans.A, 1991,(22):1545-1558

[9] A.Laasorui, J.J. Jonas. Recrystallization of austenite after deformation at high temperature and strain rates-Analysis and Modeling [J]. Metla1.Trans.A, 1991,(22):151-160

DOI: 10.1007/bf03350957