|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIV
||Structure-property Relationships in Nanoporous Metallic Glasses
||Daniel Sopu, Celal Soyarslan, Mihai Stoica, Jürgen Eckert
|On-Site Speaker (Planned)
Despite the great potential of bulk metallic glasses (BMG) to be used as structural materials, the inverse strength-ductility-functionality problem significantly limits the application of these materials. However, premature failure can be avoided if heterogeneities are introduced into the glassy matrix. Within this study, we present a new strategy to improve the ductility of BMG by constructing 2-dimensional heterostructures like nanoporous BMG. By using molecular dynamics and finite element simulations an effective strategy to control the strain localization in CuZr BMG heterostructures is provided. Depending on the pore architecture in the heterostructure, upon uniaxial tension, nanoporous BMG show a wide range of failure modes ranging from brittle to ductile ones. These findings are helpful in understanding the structure-property relationships of complex BMG composites reinforced with a systematic secondary phase design on the nano-level.
||Planned: Supplemental Proceedings volume