Effect of sheet thickness on the microstructural evolution of an Mg AZ61 alloy during large strain hot rolling

Using texture analysis and optical microscopy it has been found that, due to the large anisotropy of the hcp lattice, the deformation mechanism predominant during large strain hot rolling of an AZ61 Mg alloy changes from dislocation slip and rotational recrystallization (RRX) to twinning as the sheet thickness is reduced. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.