Paper Title:
Twinning and Detwinning during Cyclic Deformation of Mg Alloy AZ31B
  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.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
3407-3413
DOI
10.4028/www.scientific.net/MSF.539-543.3407
Citation
D. W. Brown, A. Jain, S. R. Agnew, B. Clausen, "Twinning and Detwinning during Cyclic Deformation of Mg Alloy AZ31B", Materials Science Forum, Vols. 539-543, pp. 3407-3413, 2007
Online since
March 2007
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$32.00
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