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Evolution of Crystallographic Texture during Equal Channel Angular Extrusion of Copper: The Role of Material Variables

Satyam, Suwas and Roxane, Arruffat-Massion and Toth, Laszol S and Jean-Jacques, Fundenberger and Andre, Eberhardt and Werner, Skrotzki (2006) Evolution of Crystallographic Texture during Equal Channel Angular Extrusion of Copper: The Role of Material Variables. In: Metallurgical and Materials Transactions A, 37 (3). pp. 739-753.

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Abstract

The evolution of crystallographic texture during equal channel angular extrusion (ECAE) using route A has been investigated experimentally as well as by simulations for three types of materials: pure, commercially pure, and impure (cast) copper. The ECAE texture of copper can be compared with simple shear textures. However, there are deviations in terms of location of the respective components. These differences can be nearly reproduced using a recent flow line approach for ECAE deformation (L.S. Toth, R. Arruffat-Massion, L. Germain, S.C. Baik, and S. Suwas: Acta Mater., 2004, Vol. 52, pp. 1885-98) with the help of the viscoplastic self-consistent polycrystal model. The main texture components common to all three materials are $A_1_E$ and $B_E/\overline{B}_E$; the latter ones are significantly stronger in the cast material. The effect of further deformation on texture modification depends on material variables, such as purity, initial microstructure, and texture.

Item Type: Journal Article http://www.ingentaconnect.com/content/tm... Copyright of this article belongs to Minerals Metals Materials Society Severe plastic-deformation;Simple shear;Modeling texture;Microstructure;Torsion;Aluminum Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) 31 May 2006 27 Aug 2008 12:05 http://eprints.iisc.ernet.in/id/eprint/7177