|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Magnesium Alloy Development: An LMD Symposium in Honor of Karl Kainer
||Effect of Al Addition on the Microstructure and Compressive Properties of Mg-based AZ31 Alloy
||Md Ershadul Alam, Victor Hernandez, Zephyr Li, Irene J Beyerlein, AbdelMagid Salem Hamouda, Manoj Gupta
|On-Site Speaker (Planned)
||Md Ershadul Alam
In the present study, magnesium-based AZ41 and AZ51 alloys are developed by adding 1 and 2 wt.% elemental Al with AZ31 alloy, respectively, using a disintegrated melt deposition (DMD) technique. All cast ingots are then subsequently hot extruded at 400 0C at 26.25: 1 to produce ~8 mm diameter rod. Finer and nearly equiaxed grains are observed when viewed normal to the extrusion direction, whereas along the extrusion direction elongated grains are seen. Microhardness and room temperature tensile strength increase with elemental Al addition, though ductility decreases slightly. Interestingly, both compressive strengths and ductility increases simultaneously with increasing Al addition. SEM and EBSD extensively characterize fracture surfaces of the broken tensile and compressive specimens. VPSC model is performed to help understand and correlate the effect of Al additions on texture evolution and subsequent mechanical properties.