|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Metal-Matrix Composites: Analysis, Modeling, Observations and Interpretations
||Aluminum Matrix Composite Fabricated using Additive Friction Stir Deposition
||Yuzheng Zhang, William Harrigan
|On-Site Speaker (Planned)
Additive friction stir welding is a solid-state additive manufacturing method developed by MELD Manufacturing. This friction stir additive manufacturing technology is well suited for building large metal matrix composite (MMC) components and can achieve a near-net shape by replacing the conventional metal processing routes such as extrusion, rolling and forging. A good dispersion of reinforcing particles can be preserved as the solid-state stirring prevents the reinforcing particles from agglomeration. In addition, the severe plastic deformation introduced during friction stir welding often results in fine grain sizes and isotropic mechanical properties comparable to the wrought counterpart. In this work, an aluminum-based metal matrix composite reinforced with micron-sized spherical alumina particles will be built using the MELD method. The microstructure evolution and the resulting tensile properties of the additive sample will be investigated and compared with the wrought counterpart using advanced characterization tools.