|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|Ultrafine-grained and Heterostructured Materials (UFGH XII)
|Deformation Mechanism of Magnesium Alloy with Heterogeneous Ultrafine Structures Composed of Soft and Hard Domains
|Jongbin Go, Myeong-Heom Park, Si Gao, Nobuhiro Tsuji
|On-Site Speaker (Planned)
Metallic materials with heterogeneous nanostructures often show superior mechanical properties managing both high strength and good tensile ductility, but details of their deformation mechanism are still unclear. In the present study, we aim to fabricate hetero-nanostructured magnesium (Mg) alloy and to investigate its deformation mechanism. Mg and Mg alloys have attracted great attention as the lightest structural metallic material. Due to their HCP crystal structure, orientation distributions in microstructures can be also counted as a source of mechanical heterogeneity. Conventional AZ31 Mg alloy with HCP single-phase structure is processed through heavy deformation (including severe plastic deformation) and subsequent heat treatments for fabricating heterogeneous ultrafine structures composed of soft and hard domains. Details of their microstructures and mechanical properties will be shown in the presentation.
|Mechanical Properties, Characterization, Magnesium