|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Multiscale Architectured Materials (MAM II): Tailoring Mechanical Incompatibility for Superior Properties
||Laminar Bulk Metallic Glass/Metal Composites Via Accumulative Roll Bonding
||Sina Shahrezaei, Irene J Beyerlein, Stephanie O'Keeffe, Suveen N Mathaudhu
|On-Site Speaker (Planned)
Monolithic bulk metallic glasses (BMG) are known to have high strengths and hardness, however, they are inherently brittle, making them not desirable for structural applications wherein plastic deformation must be supported. Laminar composites of BMG and other ductile metals fabricated by deposition methods allow extraordinary mechanical performances including high ductility and strength, and unique dislocation activity in the amorphous/crystalline interface, however are limited in size and scalability. Here we demonstrate the scalable fabrication of laminar Zr-based BMG/Ni composites using accumulating roll bonding. The Mechanical behavior of these composites is evaluated using micro- and nanoindentation probes and mechanical tension tests. The resulting microstructures are evaluated using SEM and EBSD, while the composition at the bonding interface is analyzed using EDX. The effect of these novel interfaces on dislocation activity will be reported. The results forecast the design of a variety of BMG/crystalline metal composites for high performance structural materials.