Formation Process of {001} Texture in Al-Cu Solid Solution during High Temperature Compression Deformation

Abstract

Uniaxial compression tests were conducted on Al-2.3mass%Cu and Al-4.6mass%Cu alloys under strain rates and temperatures ranging from 1.0×10-4s-1 to 5.0×10-2s-1 and 723K to 803K, respectively. Texture measurements reveal that main component of the fiber texture changes from {001} + {011} to {001} depending on the deformation conditions. EBSD measurements reveal that grain structure separates into large grains without subgrains and small and large grains with subgrains after the deformation at 803K under a strain rate of 5.0×10-2s-1 up to a strain of -1.0 in Al-4.6massCu alloy.