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.

Grain boundary migration contributes to the development of 001 fiber texture in Al-3mass%Mg alloy during high-temperature deformation, while no significant change is observed in Al-3mass%Mg-0.2mass%Sc alloy with Al3Sc precipitates.

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

Key Takeaway: Grain boundary migration contributes to the development of 001 fiber texture in Al-3mass%Mg alloy during high-temperature deformation, while no significant change is observed in Al-3mass%Mg-0.2mass%Sc alloy with Al3Sc precipitates.