The Effect of Initial Grain Size on Transition from Discontinuous to Continuous Recrystallization in a Highly Cold Rolled AI-Fe-Mn Alloy

摘要

The deformation microstructures and the recrystallization behaviour of a highly deformed Al-Fe-Mn alloy has been investigated using high resolution EBSD. Of particular interest have been the effects of the initial grain size and the strain on the nature of the recrystallization process. The results show that conventional discontinuous recrystallization takes place for large initial grain sizes and low to moderate strains. However, small initial grain sizes and large strains promote a transition to continuous recrystallization and a resultant micron-grained product.