Paper Title:

Texture and Grain Boundary Character Distribution during Equal Channel Angular Extrusion of some Two-Phase Copper Alloys

Periodical Materials Science Forum (Volumes 584 - 586)
Main Theme Nanomaterials by Severe Plastic Deformation IV
Edited by Yuri Estrin and Hans Jürgen Maier
Pages 585-590
DOI 10.4028/www.scientific.net/MSF.584-586.585
Citation Satyam Suwas et al., 2008, Materials Science Forum, 584-586, 585
Online since June, 2008
Authors Satyam Suwas, Somjeet Biswas, Satyaveer Singh Dhinwal, Kamanio Chattopadhyay
Keywords Brass, Copper Alloy, Electron Backscatter Diffraction (EBSD), Equal Channel Angular Extrusion (ECAE)
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In the present work, a thorough investigation of evolution of microstructure and texture has been carried out to elucidate the evolution of texture and grain boundary character distribution (GBCD) during Equal Channel Angular Extrusion (ECAE) of some model two-phase materials, namely Cu-0.3Cr and Cu-40Zn. Texture of Cu-0.3Cr alloy is similar to that reported for pure copper. On the other hand, in Cu-40Zn alloy, texture evolution in α and β (B2) phases are interdependent. In Cu-0.3Cr alloy, there is a considerable decreases in volume fraction of low angle boundaries (LAGBs), only a slight increase in CSL boundaries, but increase in high angle grain boundaries (HAGBs) from 1 pass to 4 passes for both the routes. In the case of Cu-40Zn alloy, there is an appreciable increase in CSL volume fraction.

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