Paper Title:
Formation of Shear Texture and Ultra-Fine Grains during Equal Angular Channel Rolling and Subsequent Annealing in AA 3003 Sheet
  Abstract

The evolution of texture and microstructure during the equal channel angular rolling (ECAR) and subsequent annealing in aluminum alloy 3003 sheets was investigated. The tools of ECAR were designed to provide a constant shear deformation of the order of 0.5 per passage while preserving the original sheet shape. Samples of the aluminum alloy 3003 sheets were repeatedly deformed by ECAR up to twelve passages. Shear textures developed after the first passage of ECAR. However, the intensity of shear texture components decreased with increasing number of ECAR passages. After a large number of ECAR passages, a random texture developed at the expense of shear texture components. Observations by TEM and EBSD revealed that the degree of misorientations within the deformed grains increased with increasing number of ECAR passages. After recrystallization annealing, samples deformed by ECAR displayed pronounced {111}//ND fiber orientations. The annealed sheets comprising of ultra-fine grains were successfully produced in the samples deformed by a large number of ECAR passages.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
873-876
DOI
10.4028/www.scientific.net/MSF.449-452.873
Citation
M. Y. Huh, J.P. Lee, J. C. Lee, J. W. Park, Y. H. Chung, "Formation of Shear Texture and Ultra-Fine Grains during Equal Angular Channel Rolling and Subsequent Annealing in AA 3003 Sheet", Materials Science Forum, Vols. 449-452, pp. 873-876, 2004
Online since
March 2004
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