Microstructural Evolution of Friction Stir Treated WE43 Alloy

Xu Dong Wang; Jiong Li Li; Zheng Lu; Xian Feng Zhang; Zhi Feng Ma; Gang Sun

doi:10.4028/www.scientific.net/MSF.788.74

Paper Titles

Purification of Magnesium by Vacuum Distillation and its Analysis
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Effect of Ce Addition on Microstructure and Mechanical Properties of ZM21 Magnesium Alloys
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Impact of Peak Shock Stress on the Microstructure and Reloaded Mechanical Behavior of AZ31 Magnesium Alloy
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Microstructure and Mechanical Properties of As-Rolled Mg-Zn-Gd-Ca-Mn Sheets
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Microstructural Evolution of Friction Stir Treated WE43 Alloy
p.74

Microstructure and Tensile Properties of As-Cast Mg-5Sn-4Cu Alloy
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Effect of Ce Addition on the Ignition-Proof Properties and Surface Tension of AZ91D-2.5Ca(Wt.%) Magnesium Alloy
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Effect of Re Addition on the Ignition Resistance of Pure Magnesium
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Deformation Behavior of ZK60 Magnesium Alloy at Elevated Temperature
p.93

HomeMaterials Science ForumMaterials Science Forum Vol. 788Microstructural Evolution of Friction Stir Treated...

Microstructural Evolution of Friction Stir Treated WE43 Alloy

Abstract:

Mg-Y-Nd (WE43) plate in 3mm thickness was friction stir welded (FSW) under a tool rotation rate of 800rpm and a traverse speed of 100 mm/min. The super plastic deformation structure was obtained in as-FSWed WE43 alloy. Coarse equiaxed recrystallized microstructure in extruded WE43 alloy with the average grain size of over 50μm changed into fine equiaxed recrystallized grains with the average grain size of under 5μm in the FSW core zone. The formation and evolution of hardening precipitates in WE43 alloy during ageing at 210^oC is characterized by transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) observations. It was indicated that the microstructure of as-FSWed WE43 always contain β’’ phase even without heat treatment. The hardening is mainly associated with the β’’→β’ transformation.