The Mathematic Model of Deformation Resistance of S50C Medium Carbon Steel in Hot Rolling Process

Author:

Liang Jing Long1,Feng Yun Li2,Yin Jin Zhi3,Cang Da Qiang4,Li Hui1

Affiliation:

1. University of Science and Technology

2. Hebei key Laboratoryof Modern Metallurgy Technology

3. College of Metallurgy and Energy, Hebei United University

4. University of Science and Technology Beijing

Abstract

A test study of deformation resistance of S50C medium carbon steel in hot rolling process was conducted by using Gleeble 3500 Thermal-mechanical testing machine. The relationship of deformation resistance with different deformation temperature and deformation rate and deformation degree was analyzed through the stress-strain curve of S50C medium carbon steel which measured in the test. The results show that the deformation resistance increase with decrease of deformation temperature and increase of deformation rate and deformation degree. The math model of plastic deformation for metal of tested steel is established by using 1stopt software with multi-component non-regression. The model is proved has good curve fitting characteristics though a regression analysis of the model, it can be used provide theory basis for the formulation of rolling process and calculation of the mechanical parameters.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference7 articles.

1. Zhiye Zhao. Metal plastic deformation and rolling theory [M]. Beijing: Metallurgical Industry Press, 1994, 6.

2. Jihua Zhou, Kezhi Guan. Metal plastic deformation resistance [M]. Beijing: China Machine Press, (1989).

3. Jie Yang. Rolling Process Mathematical Model [M]. Beijing: Metallurgical Industry Press, 1993, 10.

4. Johson G R, Cook W H. A constitutive model and data for metals subjected to large strains, high strain rate and high temperatures [A]. Proceedings of Seventh International Symposium on Ballistic[C]. Zhang Z. The Hague, the Netherlands: [s. n. ],1983: 541-547.

5. Weidong Zeng, Yigang Zhou, Hanqing Yu. Hot Compressive Deformation Behavior of Ti-17 Alloy [J]. Materials Science and Technology, 1996, 4(2): 20-24.

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