Institute of Materials Science and Engineering

Characterization of the deformation and damage behavior of metallic glasses using physically based data

The aim of the project is to clarify the extent to which the deformation and degradation behavior of metallic glasses can be comprehensively characterized by the measurement methods established at the Institute of Materials Science and Engineering (WKK) for the investigation of polycrystalline metallic engineering materials. For this, quasistatic and cyclic deformation tests on metallic glasses at room temperature will be carried out. In addition to the conventional measurement of the stress-strain relationship, further physical parameters such as temperature, electrical resistance and magnetic flux density are recorded in situ during mechanical stress and their changes are analyzed by means of microstructural investigations of the magnetic domains.

Magnetic microstructure on a Fe-based bulk metallic glass (a) initial state, (b) after elastic-plastic deformation due to application of Vickers hardness HV1 and (c) with micro crack after Vickers hardness indentation HV10

The project is funded by the TU Nachwuschsring (network for the promotion of young scientists).

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