Ultrafine texture of Cu-Zr metallic glass microstructure
Abstract
This work is dedicated in the investigation of the fine details of the microstructure of Metallic Glasses. The study was conducted mainly by means of Molecular Dynamic Simulations on several compositions of Cu-Zr Bulk Metallic Glasses, in comparison with experimental data, revealing their properties dependency with the existence of several Icosahedral-like clusters._______________________________________The study comprises the exploration of the microstructure evolution under three different vitrification techniques; rapid quenching, thin film deposition and mechanical alloying. The Cu-Zr Metallic Glasses were analysed during every vitrification procedure and the formation of the Icosahedral-like clusters was investigated revealing their importance on the Glass Forming Ability of the Cu-Zr systems._____________________Furthermore, the Icosahedral-like clusters were found to be usually distorted and interpenetrated while when the stoichiometry of these nanostructures obeyed the system’s ...
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