Microstructures and Mechanical Properties of Mg-Li-Zn Alloys as Processed by ECAE

Jye Lee; Jian Yih Wang; Chin Shuang Lee; Shyong Lee

doi:10.4028/www.scientific.net/MSF.546-549.225

Paper Titles

Study on Electromagnetic Vibration Casting (EVC) of Magnesium Alloys
p.207

Influence of RE on Microstructure and Mechanical Properties of Mg-Li-Al Alloys
p.211

Effects of Non-Flux Purification on the Microstructure and Mechanical Properties of AZ31+xCa Mg Alloy
p.217

A Constitutive Model for Casting Magnesium Alloy Based on the Analysis of a Spherical Void Model
p.221

Microstructures and Mechanical Properties of Mg-Li-Zn Alloys as Processed by ECAE
p.225

Microstructural Characterization and Mechanical Behavior of an Mg-9%Li-1%Zn Alloy
p.229

Effect of Grain Size on Necklace Formation of Magnesium Alloys
p.233

Elevated Temperature Mechanical Behavior of Mg-Y-Zn Alloys
p.237

Microstructures, Tensile Properties and Forming Process of AZ31 Alloy Sheets
p.241

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Microstructures and Mechanical Properties of Mg-Li-Zn Alloys as Processed by ECAE

Abstract:

Magnesium alloys and very light metals that can be used for structural application. A variety of Mg-Li-Zn alloys including Mg-11%Li-1%Zn, Mg-9%Li-1%Zn, Mg-9%Li-1%Zn-0.2%Mn, Mg-9%Li-1%Zn-1%Al-0.2%Mn and Mg-9%Li-3%Al-1%Zn-0.2%Mn were processed by equal channel angular extrusion (ECAE) to see how effective is this process in refining the grain structure. After 4 passes of the ECAE process, TEM studied the microstructural diversifications, especially showing the existence of compounds, MgLiZn, MgZn2 and ZnO. The room temperature and high temperature mechanical properties were also investigated. After the ECAE process, the room temperature strength was found enhanced at a modest cost of reduction in elongation.