Structure and mechanical properties of the Mg-Y-Gd-Zr alloy after high pressure torsion

The age-hardenable Mg-4.7%Y-4.6%Gd-0.3%Zr (wt%) alloy has been studied after high pressure torsion (HPT) at room temperature, 200 degrees C and 300 degrees C. The formation of partially nanocrystalline structure upon HPT results in substantial strengthening relative to the undeformed state of the alloy. The research showed that the strength of the HPT processed alloy could be further improved by aging. (c) 2016 Elsevier B.V. All rights reserved.