Effect of Grain Boundary Migration on Texture Formation in Al-3mass%Mg Solid Solution during High Temperature Deformation

Abstract:

Uniaxial compression deformation is conducted on solid solution Al-3mass%Mg and Al-3mass%Mg-0.2mass%Sc with Al3Sc precipitates in the strain rates ranging from 1.0×10-4s-1 to 5.0×10-3s-1 at 723K. High temperature yielding is observed. Fiber texture is constructed in all the deformation conditions. While the main component of the fiber texture changes from {011} to {001} in Al-3mass%Mg alloy with an increase in strain rate, no big change in texture main component is seen for Al-3mass%Mg-0.2mass%Sc alloy with Al3Sc precipitates. It is experimentally shown that the development of {001} fiber texture can be attributed to the grain boundary migration.

• Periodical: Materials Science Forum (Volumes 558-559)
• Pages: 551-556
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.558-559.551
• Online since: October 2007
• Authors: Kazuto Okayasu, Hiroki Takekoshi, Hiroshi Fukutomi
• Keywords: Al₃Sc Precipitate, Al-Mg Alloy, Electron Backscatter Diffraction (EBSD), Grain Boundary Migration, High Temperature Compression Deformation, ODF, Texture

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