|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Magnesium Technology 2017
||Thermomechanical Processing of Thixomolded Alloys
||Raymond F. Decker, Stephen LeBeau, Tracy Berman, Tori Miller, Wayne Jones, Tresa Pollock, Nir Moskovich, Boris Bronfin
|On-Site Speaker (Planned)
||Raymond F. Decker
A wide variety of Mg alloys have been processed by Thixomolding® followed by thermomechanical processing (TMP) - to increase tensile, creep and fatigue strength, ductility and formability. These alloys encompass variations in Al, Zn, Ca, Mn, Sr, Y, Zr and Rare Earths (RE) in the Mg base. Due to the fine microstructure and low porosity rendered by Thixomolding, TMP has been feasible using high strain warm rolling and warm pressing. Thus, grain size is further reduced and texture can be moderated. Data will be presented on the above alloys along with more extensive information on the commercial alloys AM60 and AZ61; but also the newly developed AZ70L-TH and AXJ810-TH alloys. Friction stir welding, to join Thixomolded plates before TMP, afforded larger final sheet sizes. In discussing the above processing, properties will be related to microstructures. This research was sponsored by NSF STTR Project No. 0847198 and BIRD Foundation Contract 1243.