Effects of forging processing on the texture and tensile properties of ECAEed AZ80 magnesium alloy

AZ80 cast magnesium alloy has been fabricated by a combination of ECAE (equal channel angular extrusion) and subsequent forging processing to investigate the effect of second forging processing on the evolution of microstructure, texture and tensile properties. The AZ80 alloy produced by this process exhibited the ultimate tensile strength (UTS) of 434 MPa, yield strength (VS) of 347 MPa, and elongation-to-failure of 6%. The observed high strength in this sample has been ascribed to the effect of grain refinement and the formation of sharp basal texture by the subsequent forging processing. The contribution of second-phase particles to the mechanical properties was also discussed in this paper. (C) 2012 Elsevier B.V. All rights reserved.