Paper Title:
Evolution of Micro-Textures within Individual Grains in Rolled Polycrystal Aluminum
  Abstract

Local orientation distributions of two neighbouring grains initially orientated near (01l)[100] and (210)[001], in a pure Al poly-crystal aggregate rolled by a reduction of 65% at room temperature have been investigated using electron backscatter diffraction (EBSD) technique. It was found that the rotation angles of zones adjacent to both sides of initial boundary (BP) are less than that of zones remote from the boundary (IP), which reveals that rotation incompatibility and heterogeneity of local orientations within individual grains during rolling. A type of improved Taylor type crystal plasticity models, in which an added prescribed shear (APS) depending on distances from grain boundary proposed, was established to illustrate development of micro-textures in each grain. The results simulated by the APS-Taylor models well agree with the micro-textures examined by EBSD.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
807-811
DOI
10.4028/www.scientific.net/MSF.546-549.807
Citation
Y. L. Deng, Y. Zhang, X. M. Zhang, "Evolution of Micro-Textures within Individual Grains in Rolled Polycrystal Aluminum", Materials Science Forum, Vols. 546-549, pp. 807-811, 2007
Online since
May 2007
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Price
$32.00
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