ORALS

SESSION: MagnesiumFriPM2-R4	Intl Symp. on Next Generation Magnesium Alloys and Their Applications for Sustainable Development
Fri Oct, 25 2019 / Room: Adonis
Session Chairs: TBA Session Monitor: TBA

16:20: [MagnesiumFriPM210]
Acoustic Emission Study of Active Deformation Mechanisms in Mg Alloys
Patrik Dobron¹ ; Daria Drozdenko² ; Klaudia Horvath¹ ; Juraj Olejnak¹ ; Jan Bohlen³ ; ¹Charles University, Prague, Prague, Czech Republic; ²Magnesium Research Center, Kumamoto University, Kumamoto, Japan; ³Helmholtz-Zentrum Geesthacht, Geesthacht, Germany;
Paper Id: 319 [Abstract]

The activity of individual deformation mechanisms during deformation tests of wrought Mg alloys was investigated using the acoustic emission (AE) technique. The investigated alloys exhibited a typical basal texture with basal planes oriented nearly parallel to the extrusion or rolling direction. Deformation tests were performed at room temperature and the obtained results are supported by microstructure evolution analysis provided by electron backscattered diffraction (EBSD). The AE signal analysis correlates the microstructure and the stress-strain curves to the active deformation mechanisms quite well. To determine the dominant deformation mechanism in a given time period, the adaptive sequential k-means (ASK) clustering was applied. X-ray diffraction was used to characterize the deformation texture before and after the test in order to obtain comprehensive data for texture characterization.