Determining the Anisotropy Coefficients of an Ultra Fine Grained Al6082 Alloy Subjected to ECAP


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Bulk Al6082 alloy is subjected to ECAP using route Bc. This paper focuses on the determination of the anisotropy coefficients and equivalent stress-equivalent strain curve using continuum mechanics equations. Assuming the material to be rigid-plastic, the parameters of the constitutive equation are determined with the aid of measuring the deformation and the uniaxial yield stress during upsetting tests in three perpendicular directions.



Materials Science Forum (Volumes 537-538)

Edited by:

J. Gyulai and P.J. Szabó




G. Krállics and A. Fodor, "Determining the Anisotropy Coefficients of an Ultra Fine Grained Al6082 Alloy Subjected to ECAP ", Materials Science Forum, Vols. 537-538, pp. 215-222, 2007

Online since:

February 2007




[1] Hill, R., 1948. A theory of yielding and plastic flow of anisotropic metals. Proc. Roy. Soc. London A193, 281-297.

[2] Barlat, F., Lian, J., 1989. Plastic behavior and stretchability of sheet metals. Part I: a yield function for orthotropic sheets under plane stress conditions. Int. J. Plasticity 5, 51-66.

DOI: 10.1016/0749-6419(89)90019-3

[3] Prager, W., 1955. The theory of plasticity: a survey of recent achievements (James Clayton Lecture). Proc. Instn. Mech. Engrs. 169, 41-57.

[4] Weilong Hu, International Journal of Plasticity 21 (2005) 1771-1796.

[5] P. Montmitonnet, J.L. Chenot, Journals of Materials Processing Technology 27 (1991) 119-133.

[6] O. -G. Lademo, O.S. Hopperstad, M. Langseth, International Journal of Plasticity 15 (1999) 194.

[7] Han-Chin Wu, International Journal of Plasticity 18 (2002) 1661-1682.

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