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Numerical Simulation of Superplastic Forming of a Magnesium Alloy Part

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Abstract:

A numerical simulation of superplastic backward extrusion of a magnesium alloy part is presented in this paper. In fact, the simulated superplastic forming is not a pure superplastic forming because of the billet with coarse cylindrical grains. The forming may become a pure superplastic forming only after dynamic recrystallization and grain refinement appear and the grain boundary sliding has been the main deformation mechanism. In order to simulate the special forming process, a constitutive relation considering dynamic recrystallization and the multiform deform mechanism and the parameter identification of the constitutive relattion are studied. The program for simulation is able to predict the grain refinement and the transform between different deformation mechanisms. Finally the calculated results on the grain size and dynamic rerystallization are presented. A comparison between the calculated and the experimental results shows there is a good agreement between calculated results and experimental results.

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Periodical:

Materials Science Forum (Volumes 551-552)

Pages:

263-268

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.551-552.263

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Online since:

July 2007

Authors:

Quan Lin Jin, Zhi Peng Zeng, Yan Shu Zhang

Keywords:

Dynamic Recrystallization (DRX), Grain Refinement, Magnesium Alloy, Numerical Simulation, Super Plastic Forming (SPF)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] T. Mohri et al: Materials Science and Engineering, A290 (2000), pp.139-144.

Google Scholar

[2] Tatsuhiko Aizawa et al: Materials Science Forum, Vol. 357-359 (2001), pp.35-40.

Google Scholar

[3] T. Mukai et al: Materials Science and Technology, Vol. 16 (2000), pp.1314-1319.

Google Scholar

[4] Quanlin Jin, Xiaofei Liao, Numerical Simulation of Superplastic Forming and Its Microstructure Evolution, Materials Science Forum, Vol. 447- 448(2003), pp.183-188.

DOI: 10.4028/www.scientific.net/msf.447-448.183

Google Scholar

[5] Jin Quanlin and Hai Jintao: Materials Science Forum, Vol. 243-245(1997), pp.179-185.

Google Scholar

[6] Quanlin Jin: J. Plasticity Engineering, 1(1), 3-13(1994), (in Chinese).

Google Scholar

[7] Qu Jie, Jin Quanlin , Xu Bingye: Acta Mechanica Sinica, 2004, Vol. 20 No. 5, pp.499-506.

DOI: 10.1007/bf02484272

Google Scholar

[8] Q. Jin & H. Wu, The parameter identification of superplastic constitutive model, in Simulation of materials Processing: theory, methods and aaplications, edited by Ken-ichiro Mori, A.A. BALKEMA PUBLISHERS, (2001), pp.291-296.

Google Scholar

[9] Qu Jie, Jin Quanlin, Xu Bingye: International Journal of Plasticity, Vol. 21 (2005), pp.1267-1302.

Google Scholar