|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIX
||Tailored metallic glass composites enabled by additive manufacturing
||Scott Bobbitt, Joshua Arrington, Jonathan Pegues, Andrew Kustas, Ping Lu, Morgan Jones, Nicolas Argibay, Michael Chandross
|On-Site Speaker (Planned)
Bulk metallic glasses (BMGs) have garnered much interest due to their favorable properties, including high strength, low friction/wear, and resistance to corrosion and radiation. However, their practical use has been limited due to their low ductility and propensity for brittle failure. New additive manufacturing (AM) methods have enabled the creation of more ductile BMG composites with tunable properties, including compositional grading. This permits the inclusion of multiple alloys with desirable properties (e.g. magnetic, mechanical) into a single sample. We will discuss recent work on AM of BMGs and intermetallic composites that have resulted in alloys with exceptional hardness and fracture toughness. We will also discuss insights from molecular simulations of glass-crystalline interfacial behavior (including size segregation) in binary metallic glasses, and present models for BMG strength inspired by these results.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.
||Additive Manufacturing, Modeling and Simulation, Computational Materials Science & Engineering