Analysis of Rheological Behavior on Transformation Induced Plasticity Steel

Abstract:

The cupping tests under different rate demonstrated that there was a correlation between the plastic deformation and shaping time of transformation induced plasticity (TRIP) steel, illustrating that there was also the rheology in the process of plastic forming for solid metal materials. The creep experiments were carried out by Gleeble 3500 thermal simulated test machine, and Mises yield rule was used to verify the creep experiments satisfying the visco-plastic conditions when the load was greater than yield strength. The visco-plastic deformation rate of creep experiments was obtained based on Bingham model. The viscous correlation coefficient (γ) was deduced, reaching that the viscosity of TRIP steel shows deformation resistance in the process of plastic shaping. These results provide the theoretical basis for increasing the plate yield and controlling the forming rate.

• Periodical: Materials Science Forum (Volume 850)
• Pages: 120-127
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.850.120
• Online since: March 2016
• Authors: Ji Quan Sun*, Sheng Yang Teng, Yan Jun Yin, Chuang Niu
• Keywords: Bingham Model, Mises Yield Rule, Rheology, TRIP Effect, Viscous Correlation Coefficient (γ)

References

[1] D. Wang, H. Yang, H. Li, Advance and trend of friction study in plastic forming, Trans. Nonferrous Met. Soc. China 24 (2014) 1263-1272.

DOI: 10.1016/s1003-6326(14)63188-5

[2] J. -H. Hua, Review of elastic visco-plastic modeling of the time-dependent stress-strain behavior of soils and its extensions and applications, Constitutive Modeling of Geomaterials, Springer Berlin Heidelberg (2013) 149-157.

DOI: 10.1007/978-3-642-32814-5_17

[3] X. C. Wang, A. M. Habraken, An elastic-visco-plastic damage model: from theory to application, J. Phys. IV 6 (1996) C6-549-C6-558.

DOI: 10.1051/jp4:1996655

[4] J. J. Gilman, Micromechanics of flow in solids, Mc Graw-Hill, New York, 1969, pp.121-128.

[5] Y. -S. Luo, The theoretical experimental & practical research on rheological forming of metals, National University of Defense Technology, (2000).

[6] R. J. Clifton, Plasticity of metal, Appl. Mech. Rev. 38 (1985) 1261-1263.

[7] S. -J. Li, J. -Q. Sun, Yan-J. Yin, et al, The research of constitutive model of TRIP steel based on the rheological theory, National Seminar on steel processing in 2014, Tianjing, (2014).

[8] H. Ping, G. Shen, G. Yang, A quasi-flow constitutive model with strain-rate dependence, ACTA CHIM SINICA 20 (2004) 283-291.

DOI: 10.1007/bf02486720

[9] H. -Y. Yu, An experimental study on forming behavior of TRIP high-strength steel sheet for vehicles, Automotive Engineering 8 (2007) 731-734.

[10] N. -W. Jia, Viscoplastic mechanics and engineering application, Seismological Press, Beijing, (2000).

[11] J. -S. Zhuo, Constitutive deduce of engineering material, Science Press, Beijing, (2009).

[12] Y. S. Luo, K. Dohda, Z. Wang, Experimental solution for viscosity coefficient of solid alloy material, Int. J. Appl. Mech. Engng. 8 (2003) 271-276.