Affiliation:
1. Los Alamos National Laboratory
2. University of Virginia
Abstract
Textured Mg alloys exhibit tension – compression strength asymmetry due to mechanical
twinning. The distinction arises as the material deforms primarily by slip in one direction and by
twinning in the other. In-situ neutron diffraction during cyclic loading in tension and compression of
extruded bar allows study of the effect of twinning on subsequent load reversals. The diffraction data
reveal the texture evolution and internal stress development as a function of deformation.
De-twinning resulted in complete texture reversal during initial cycles, but eventually “fatigued”
resulting in some residual twin component.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
74 articles.
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