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Microstructure heterogeneity after the ECAP process and its influence on recrystallization in aluminium

Authors
Journal
Materials Characterization
1044-5803
Publisher
Elsevier
Volume
78
Identifiers
DOI: 10.1016/j.matchar.2013.01.010
Keywords
  • Ebsd
  • Equal-Channel Angular Extrusion
  • Crystallographictexture Analysis
  • Plastic Anisotropy
  • Heterogeneity
  • Recrystallization
Disciplines
  • Mathematics

Abstract

Abstract The main purpose of the present work is to describe the qualitative and quantitative behaviours of aluminium during high strain plastic deformation and the effect of deformation on the subsequent recrystallization process. An Electron Backscatter Diffraction analysis of aluminium after the Equal channel angular pressing (ECAP) and recrystallization process is presented. In order to do this, several topological maps are measured for samples processed by 4 and 8 passes and recrystallized. The processing was conducted with route C. For all samples, distributions of grain size, misorientation, image quality factor (IQ) and texture were preceded and then analysed in some detail.

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