|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIV
||Manufacturing of Cu-based Metallic Glasses Matrix Composites by Spark Plasma Sintering
||Sandrine Cardinal, Jean-Marc Pelletier, Guoquiang Xie, Jichao Qiao
|On-Site Speaker (Planned)
Bulk metallic glasses (BMGs) present high strength, high hardness, superior elastic limits and high wear resistance. However, usually they do not exhibit any significant macroscopic plasticity since the plastic deformation is localized in narrow regions termed shear bands. This lack of macroscopic plasticity limits their structural applications at room temperature. In order to enhance the ductility, metallic glass matrix composites (MGMCs) composed of (a) soft crystalline phase(s) and a glassy matrix have been developed. The ductile crystalline particles act as obstacles for shear bands and hence hamper the rapid propagation of a detrimental shear band. In this study, MGMCs are produced by mixing a metallic glass powder (Cu-based) and a crystalline powder (Zr) in a planetary ball mill and then by densification of the mixture by spark plasma sintering (SPS). The influence of volume percentage of particles on the mechanical properties has been studied.
||Planned: Supplemental Proceedings volume