Paper Title:
Shear Banding in Twinned Structures and Their Influence on Brass-Type Texture
  Abstract

The local crystallography within shear bands (SB) has been examined in a single crystal of {112}<111> orientation of pure copper deformed at 77K by channel-die compression to strains of about 1. Setting up a system for making high-resolution orientation maps using transmission electron microscopy (TEM) has opened new advantageous circumstances for the analysis of orientation changes within SB. This method with spatial resolution higher than 10nm allows the examination of microstructure images composed of nanoscale subcells forming SB. It has been found that for well-developed shear bands, a crystal lattice rotation about <112> direction tends to dominate and this process is usually accompanied by activation of new slip systems. The present work shows that despite the plane strain deformation mode, the mechanism of lattice rotation within emerging SBs may lead to Goss and Brass texture components.

  Info
Periodical
Materials Science Forum (Volumes 495-497)
Edited by
Paul Van Houtte and Leo Kestens
Pages
1067-1072
DOI
10.4028/www.scientific.net/MSF.495-497.1067
Citation
H. Paul, A. Morawiec, E. Bouzy, J.-J. Fundenberger, A. Piątkowski, "Shear Banding in Twinned Structures and Their Influence on Brass-Type Texture", Materials Science Forum, Vols. 495-497, pp. 1067-1072, 2005
Online since
September 2005
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Price
$32.00
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