Processing, superplastic properties and friction stir welding of fine-grained AZ31, AZ91, AE42 and QE22 magnesium alloys AZ31, AZ91, AE42 and QE22 magnesium alloys

Abstract

The grain refinement after thermo-mechanical treatment (TMT) was investigated in AZ91, AE42, and QE22 magnesium alloys. The optimal over-aging temperature was determined to be 300 oC in the case of AZ91 and AE42 alloys and 350 oC for QE22 alloy.

Keywords

• Processing
• superplastic
• properties
• friction
• stir
• welding
• fine-grained
• AZ31
• alloys AZ31
• AZ91
• AE42
• QE22
• magnesium
• alloys