High temperature processing of Mg-Zn-Y alloys containing quasicrystal phase for high strength

A process to obtain high strength in a Mg-Zn-Y alloy containing quasicrystalline phase is described. The process involves solutionizing at a high temperature, precipitation of the quasicrystal phase during extrusion, followed by ageing. Tensile yield strengths of over 350 MPa are obtained with grain sizes of 14-20 mu m. (C) 2011 Elsevier B.V. All rights reserved.