Texture evolution by shear on two planes during ECAP of a high-strength aluminum alloy

The evolution of texture was examined during equal-channel angular pressing (ECAP) of an Al–Zn–Mg–Cu alloy having a strong initial texture. An analysis of the local texture using electron backscatter diffraction demonstrates that shear occurs on two shear planes: the main shear plane (MSP) equivalen...

Full description

Saved in:
Bibliographic Details
Published in:Acta materialia 2008-09, Vol.56 (15), p.3800-3809
Main Authors: Wang, Shun Cai, Starink, Marco J., Gao, Nong, Qiao, Xiao Guang, Xu, Cheng, Langdon, Terence G.
Format: Article
Language:English
Subjects:
Aluminum alloy
Applied sciences
Billets
Channels
Electron backscatter diffraction
Equal channel angular pressing
Evolution
Exact sciences and technology
Metals. Metallurgy
Planes
Shear
Shear planes
Surface layer
Texture
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The evolution of texture was examined during equal-channel angular pressing (ECAP) of an Al–Zn–Mg–Cu alloy having a strong initial texture. An analysis of the local texture using electron backscatter diffraction demonstrates that shear occurs on two shear planes: the main shear plane (MSP) equivalent to the simple shear plane, and a secondary shear plane which is perpendicular to the MSP. Throughout most regions of the ECAP billet, the MSP is close to the intersection plane of the two channels but with a small (5°) deviation. Only the {1 1 1}〈1 1 0〉 and {0 0 1}〈1 1 0〉 shear systems were activated and there was no experimental evidence for the existence of other shear systems. In a small region at the bottom edge of the billet that passed through the zone of intersection of the channels, the observed textures were fully consistent with the rolling textures of Copper and Goss.
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2008.04.022