|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIV
||Bulk Metallic Glasses Composites Produced via Severe Plastic Deformation – Microstructure and Mechanical Properties
||Lisa Kraemer, Verena Maier-Kiener, Karoline Kormout, Yannick Champion, Reinhard Pippan
|On-Site Speaker (Planned)
Bulk metallic glasses (BMGs) can be produced via different routes. One innovative way to fabricate not only BMGs, but also BMG composites is High Pressure Torsion (HPT). With it, it is possible to start with powders and to easily control the applied strain and so the microstructure. Composites with two amorphous phases (Zr-based and Ni-based) and an amorphous and a crystalline phase (Cu) were produced. The obtained microstructures of the composites were studied and correlated to the mechanical properties by using different methods such as nanoindentation and in-situ SEM micropillar compression. The deformation behavior was characterized under ambient but also non-ambient conditions. Deformation behavior and mechanical properties change due to the second phase. A change in hardness, Young’s Modulus, fracture strength and fracture strain can be observed. Additionally, XRD, TEM and SEM investigations help to understand the structural evolution as a function of the applied strain during the HPT-process.
||Planned: Supplemental Proceedings volume