Microstructural Evolution during Friction Stir Processing of Magnesium Alloy Castings

Joseph D. Robson; Song Cui; Zhanwen Chen

doi:10.4028/www.scientific.net/MSF.654-656.751

Paper Titles

Grain Refinement by Combined ECAE/Extrusion and Dieless Drawing Processes for AZ31 Magnesium Alloy Tubes
p.735

Warm Hydroforming Process with Non-Uniform Heating for AZ31 Magnesium Alloy Tube
p.739

Sound Insulation Study on Mg Sheet and Mg Honeycomb Panels
p.743

Effect of Temperature on Plastic Buckling Strength of Shot Peened Pipe of Magnesium Alloys
p.747

Microstructural Evolution during Friction Stir Processing of Magnesium Alloy Castings
p.751

Welding Interface in Magnetic Pulse Welded Joints
p.755

Microstructure of Laser Treated ZE41A-T5 Magnesium Alloy
p.759

Surface Modification and Repair for Aircraft Life Enhancement and Structural Restoration
p.763

Improvement of Corrosion Resistance of Extruded Mg-Zn-Y Mg/LPSO Two-Phase Alloys by Fourth Element Addition
p.767

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Microstructural Evolution during Friction Stir...

Microstructural Evolution during Friction Stir Processing of Magnesium Alloy Castings

Abstract:

Friction stir processing (FSP) of cast AM60 magnesium alloy has been studied using the breaking pin method, freezing the microstructure during the process. Strong evidence is seen that partial melting plays a key role in removing the β-Mg17Al12, whereas the manganese rich intermetallics persist during FSP. This is consistent with temperature predictions made using a process model adapted to FSP of AM60 castings that show the eutectic melting point is exceeded.