Evolution of the Microstructure of Al 6082 Alloy during Equal-Channel Angular Pressing


Article Preview

A commercial Al-Mg-Si alloy (Al 6082) was deformed by Equal-Channel Angular Pressing (ECAP) to produce bulk ultrafine-grained microstructure. The crystallite size distribution and the characteristic parameters of the dislocation structure were investigated by X-ray diffraction profile analysis. It was found that the crystallite size decreased and the dislocation density increased during ECAP deformation. The increase of the yield stress of the alloy was related to the increase of the dislocation density using the Taylor model.



Materials Science Forum (Volumes 473-474)

Edited by:

J. Gyulai




J. Gubicza et al., "Evolution of the Microstructure of Al 6082 Alloy during Equal-Channel Angular Pressing ", Materials Science Forum, Vols. 473-474, pp. 453-458, 2005

Online since:

January 2005




[1] R.Z. Valiev, R.K. Islamgaliev and I.V. Alexandrov: Prog. Mat. Sci. Vol. 45 (2000), p.103.

[2] Y. Iwahashi, J. Wang, Z. Horita, M. Nemoto and T.G. Langdon: Scripta Mater. Vol. 35 (1996), p.143.

[3] L.S. Toth: Adv. Eng. Mat. Vol. 5 (2003), p.308.

[4] V.V. Stolyarov, Y.T. Zhu, I.V. Alexandrov, T.C. Lowe and R.Z. Valiev: Mater. Sci. Eng. A Vol. 303 (2001), p.82.

[5] G.K. Williamson and W.H. Hall: Acta Metall. Vol. 1 (1953), p.22.

[6] B.E. Warren and B.L. Averbach: J. Appl. Phys. Vol. 21 (1950), p.595.

[7] M.A. Krivoglaz: Theory of X-ray and Thermal Neutron Scattering by Real Crystals (Plenum Press, New York 1996).

[8] M. Wilkens: Phys. Stat. Sol. (a) Vol. 2 (1970), p.359.

[9] R. Kuzel jr. and P. Klimanek: J. Appl. Cryst. Vol. 21 (1988), p.363.

[10] T. Ungár and A. Borbély: Appl. Phys. Lett. Vol. 69 (1996), p.3173.

[11] A. Borbély, J.H. Driver and T. Ungár: Acta Materialia Vol. 48, (2000), p. (2005).

[12] P. Scardi and M. Leoni: Acta Cryst. A Vol. 58 (2002), p.190.

[13] T. Ungár, J. Gubicza, G. Ribárik and A. Borbély: J. Appl. Cryst. Vol. 34 (2001), p.298.

[14] G. Ribárik, T. Ungár and J. Gubicza: J. Appl. Cryst. Vol. 34 (2001), p.669.

[15] Z. Horita, T. Fujinami, M. Nemoto and T. G. Langdon: J. Mat. Proc. Techn. Vol. 117 (2001), p.288.

[16] G. Krállics, D. Malgin , Z. Szeles and A. Fodor: Mater. Sci. Forum (in this issue).

[17] X. Duan and T. Sheppard: J. Mat. Proc. Techn. Vol. 125-126 (2002), p.179.

[18] B. Clausen, T. Lorentzeni and T. Leffers: Acta mater. Vol. 46 (1998), p.3087.

Fetching data from Crossref.
This may take some time to load.