Effect of Annealing on Microstructure and Mechanical Properties in Mg-Zn-Y Alloy with Long Period Stacking Order Phase

Masafumi Noda; Yoshihito Kawamura

doi:10.4028/www.scientific.net/MSF.638-642.1470

Paper Titles

DSC and Microstructural Investigations of the Elektron 21 Magnesium Alloy
p.1447

Creation of Fine Structure in Magnesium Alloys by Electromagnetic Vibration Process
p.1453

Effect of Cooling Rate on Morphology and Crystallography of Lath Martensite in Fe-Ni Alloys
p.1459

Corrosion Protection and Microstructure of Magnesium Alloys Anodized by Phosphate Solution
p.1464

Effect of Annealing on Microstructure and Mechanical Properties in Mg-Zn-Y Alloy with Long Period Stacking Order Phase
p.1470

Nanocrystalline LPSO Mg-Zn-Y-Al Alloys with High Mechanical Strength and Corrosion Resistance
p.1476

High Temperature Deformation of Wrought Zn-Containing Magnesium Alloys
p.1482

Optimization of Heat Treatment Conditions of Magnesium Cast Alloys
p.1488

Modeling Environment of Friction Stir Joining for AA2017T351 Plates in Butt Joint
p.1494

HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Effect of Annealing on Microstructure and...

Effect of Annealing on Microstructure and Mechanical Properties in Mg-Zn-Y Alloy with Long Period Stacking Order Phase

Abstract:

Lightweight Mg alloys are being widely adopted in electronic devices and automotive parts. However, the mechanical properties of Mg alloys are inferior to those of Al alloys, and their range of applications is limited. Recently, Mg-Zn-Y alloys have been found to exhibit superior mechanical properties to other Mg alloys. However, for use as industrial materials, it is necessary to improve their ductility while retaining their strength. We studied the mechanical properties of extruded Mg96Zn2Y2 alloy with long-period stacking order (LPSO) phases, in addition to the thermal stability of its structure during annealing. The elongation of the alloy improved from 5 % to 10 % with slightly loss of strength up to an annealing temperature of 623 K. Even at this temperature, it was possible to maintain good mechanical properties and a thermally stable microstructure.