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The effect of strain reversal during high pressure torsion on the microstructure evolution and texture of aluminum alloys
K. Chadha, , M. Jahazi
Published in Minerals, Metals and Materials Society
2015
Volume: 2015-January
   
Issue: January
Pages: 107 - 114
Abstract
The present work investigated the effect of strain reversal during high pressure torsion on the evolution of microstructure, texture and hardness properties of two different materials with different dynamic recovery behavior, namely, high purity (99%) Aluminum (2N-A1) and Aluminum-Magnesium (Al-2.5%Mg) alloy. In the two aluminum alloys subjected to different routes, the evolution of the ultrafine structure followed same trend. At lower strain level, sub grains with prominent LAGBs network were observed and at higher strains, ultrafine equiaxed grains separated by HAGBs were observed throughout the disk. The texture evolution in monotonically and strain reversal processed 2N-A1 and Al-2.5%Mg showed presence of typical torsion texture components at different strain levels. The strength of the components was observed to follow different trends depending on the processing routes. Copyright © 2015 by The Minerals, Metals & Materials Society. All rights reserved.
About the journal
JournalTMS Annual Meeting
PublisherMinerals, Metals and Materials Society