|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Nanocrystalline and Ultra-fine Grain Materials and Bulk Metallic Glasses
||Microstructure and Mechanical Behavior of UFG Mg-2Zn-2Gd
||Sunkulp Goel, Y Wang, A Srinivasan, R Jayaganthan, Jing Tao Wang
|On-Site Speaker (Planned)
The microstructure and mechanical behavior of ultrafine grained Magnesium alloy processed by multiaxial forging followed by rolling has been investigated in the present work. The As cast Mg-2Zn-2Gd alloy is deformed by for multiaxial forging at 450 oC. 50 percent reduction in each pass is applied for 2 cycles (4.2 true strain) followed by 70% rolling reduction at a temperature of 450 oC. Characterization with the help of SEM/EBSD and TEM is performed to substantiate the mechanisms of grain refinement in the alloys. Multiaxial forged magnesium alloy shows better tensile strength and ductility as compared to as cast alloy. The ductility and strength after multiaxial forging has been doubled. The EBSD and Tem analysis showed the formation of recrystallised grains due to dynamic recrystallisation during forging followed by rolling.
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