|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Metal-Matrix Composites: Analysis, Modeling, Observations and Interpretations
||Mechanical Testing of Steel and Tungsten Fibers for Use in Composites for Fusion Applications
||Matthew Weinstein, Lauren Garrison, Maxim Gussev, Carol Lin, Johann Riesch
|On-Site Speaker (Planned)
Although tungsten materials exhibit many good qualities in environments characteristic of fusion reactors, they suffer from low toughness and are brittle. One way to overcome this is with the use of tungsten fiber composites. In order to implement these fiber composites in use as a fusion reactor component, it is necessary to understand the constituent materials that makeup the fiber composite. To do this, tungsten fibers with 150 μm diameter and 40 mm length were tensile tested at room temperature in conjunction with digital image correlation (DIC) to better understand the tungsten fibers individually and how they will contribute to the overall properties of the composite material. For comparison, steel fibers of Alloy 304 with 203.2 μm diameter were also tested. The tensile tests required developing a fiber mounting procedure and unique fixture to grip the fiber ends without damage. Additionally, images were taken of the fracture surfaces.