|About this Abstract
||Materials Science & Technology 2017
||Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
||Structure and Properties of Microwave-consolidated Magnesium Powders
||R Sadangi, D Kapoor, R Rowland, T F Zahrah, M A Imam
|On-Site Speaker (Planned)
Fine-grained magnesium alloys with optimal combination of strength and ductility are being sought for lightweight structural applications. Prior work focused on two-step consolidation process, comprising of (a) Hot Isostatic Pressing (HIP) of canned metal powders, and (b) Extrusion. Significant improvements in both strength and ductility is observed in the extruded material, Current work is focused on HIP processing of microwave-sintered magnesium alloys to avoid encapsulation, degassing of metal powders and removal of encapsulating material. Such an approach will shorten the lead time and reduce the processing cost. This work will explore microwave sintering to fabricate magnesium alloys with density greater than 95%, so that remaining closed pores can be eliminated by containerless HIP. The objective of this work is to (a) optimize microwave processing parameters, (b) compare the structure and properties with consolidated materials.