Bulk metallic dual phase glasses by severe plastic deformation

Lisa Krämer, Yannick Champion, Karoline S. Kormout, Verena Maier-Kiener, Reinhard Pippan

Index: 10.1016/j.intermet.2017.12.005

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Abstract

Two different metallic glass powders were consolidated and deformed via high-pressure torsion to synthesize amorphous dual phase composites. The influence of volume fraction of the two amorphous phases and the applied shear strain was investigated. By varying the applied strain, the dimensions of the phases could be systematically varied from the micro- to the nanometer regime and at the highest applied strain even a transition to a single phase state could be observed. The study illustrates the potential of producing novel bulk metallic glasses by deformation-induced mixing which are not accessible by the classical casting route.