The Effect of EMS on the Microstructure of LPSO Mg-Zn-Y Cast Alloy

H. Akiyama; Yoshihito Kawamura

doi:10.4028/www.scientific.net/MSF.706-709.1117

Paper Titles

Microstructural Refinement of Boron Containing β-Solidifying γ-Titanium Aluminide Alloys
p.1089

Density Functional Theory and Ab Initio Molecular Dynamics Study of the Effect of Ti and Zr Transition Metals in D0₃ Fe₃Al
p.1095

The Microstructure, Creep, and Hardness Properties of Powder Metallurgy Beta Gamma TiAl-4Nb-3Mn Alloy
p.1100

First Principles Investigation of Interaction of Oxygen with Low Index Surfaces of γ-TiAl
p.1106

The Effect of EMS on the Microstructure of LPSO Mg-Zn-Y Cast Alloy
p.1117

Plastic Deformation Behavior in Magnesium Alloy Single Crystals
p.1122

High Temperature Deformation and Associated 3D Characterisation of Damage in Magnesium Alloys
p.1128

Ternary Intermetallic Compounds across the Mg-NiY Line at 673 K
p.1134

Intragranular and Grain Boundary Precipitations with Aging Treatment in Mg-Al System Alloys Poured into Gravity Mold
p.1140

HomeMaterials Science ForumMaterials Science Forum Vols. 706-709The Effect of EMS on the Microstructure of LPSO...

The Effect of EMS on the Microstructure of LPSO Mg-Zn-Y Cast Alloy

Abstract:

In this study, long period stacking ordered structure (LPSO) type magnesium alloys have been developed. They consist of LPSO phase and α-Mg phase and have excellent mechanical properties at both ambient and elevated temperatures. In the present study, the influence of electromagnetic stir (EMS) on the structure of LPSO type Mg₉₆Zn₂Y₂ (at. %) billets of φ200 mm in diameter was investigated in order to establish the large-scale casting technology of LPSO type Mg alloy. EMS refined the grain size of α-Mg up to approximately 1/3.5, and reduced the size difference between the surface and the center of the billets. By applying EMS, it was found possible to provide large-scale casting billets with fine and homogeneous microstructure.