|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Exploring the Microstructure-property Relationship of Mg-Al-Mn Alloys Enhanced via Friction Stir Processing
||David Garcia, Hrishikesh Das, Xiaolong Ma, Timothy J Roosendaal, Vineet V Joshi, Darrell R Herling, Mageshwari Komarasamy, Glenn J Grant
|On-Site Speaker (Planned)
Friction Stir Processing (FSP) is a solid-state thermomechanical processing technique that enables local grain refinement, densification, and homogenization of microstructure in metallic components. Here, FSP is applied to thin sheets of high-pressure die cast AM60 to address the porosity and heterogeneities inherent to the casting process. In this work, microstructure characterization is correlated to improvements in the static mechanical properties of the Mg alloys at various FSP processing conditions. Furthermore, the dominant deformation mechanisms for the as-cast material and the FSP material are investigated. Finally, the fatigue life improvement is correlated to microstructure modifications that lead to distinct behavior in crack initiation and crack propagation for the as-cast and FSP material.
||Magnesium, Surface Modification and Coatings, Mechanical Properties