Elevated temperature Mg97Y2Cu1 alloy with long period ordered structure

during casting. Hot working improved the mechanical properties of the LPO Mg97Y2CU1 cast alloy. Hot-extruded LPO Mg97Y2-Cu-1 alloy exhibited high tensile mechanical properties. The yield strength, tensile strength and elongation were 297 MPa, 377 MPa and 8.1%, respectively, at ambient temperature, and 273 MPa, 344 MPa and 16.3%, respectively, at 473 K. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.