|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Deformation Behavior of Hexagonal Metals Investigated by the In-situ Acoustic Emission and Digital Image Correlation Techniques
||Michal Knapek, Patrik Dobron, Frantisek Chmelik
|On-Site Speaker (Planned)
The acoustic emission (AE) and digital image correlation (DIC) techniques have been known to be particularly useful for the study of deformation dynamics in various solid materials. Recent advances in the signal analysis allow revealing the evolution of different deformation modes during loading. Moreover, deformation localization can be captured and effectively analyzed by DIC and even AE if the sample size is of at least several tens of mm. In this contribution, we present several novel results related to the abovementioned effects. The AE clustering analysis (based on the power spectral density evolution) and DIC identified differences in the evolution of deformation modes in hcp magnesium and cobalt samples. Furthermore, the effect of material parameters, such as grain size and texture, was assessed with respect to the active deformation mechanisms at the microstructural level.