Název: Investigation of deformation mechanisms in textured magnesium alloy
Autoři: Dittrich, J. ; Čapek, J. ; Knapek, Michal ; Minárik, P.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Metal 2019 - 28th International Conference on Metallurgy and Materials, Brno (CZ), 20190522
Rok: 2019
Jazyk: eng
Abstrakt: Advanced in-situ and ex-situ methods were used to reveal active deformation mechanisms during deformation of magnesium alloy with a strong texture. Three sets of samples were prepared from the rolled sheet of commercial AZ31 alloy with respect to its strong basal texture - normal direction (ND), rolling direction (RD) and 45 degrees between RD and ND, and were deformed in both compression and tension. The signal of acoustic emission (AE) was measured concurrently during the deformation. Electron backscattered diffraction (EBSD) was used to study the microstructure after the selected stages of the deformation. It is shown that the extension twinning played an important role during the plastic deformation in the samples having favorably oriented basal texture component, whereas in the unfavorably oriented samples, the role of twinning was marginal. Pronounced activation of twinning only in some samples caused a considerable variation in the deformation behavior and AE response. A consistent link between the energy and amplitudes of the AE signal and the microstructure changes investigated by EBSD was established.
Klíčová slova: acoustic emission; deformation; EBSD; magnesium; twinning
Číslo projektu: EF16_013/0001794
Poskytovatel projektu: GA MŠk
Zdrojový dokument: METAL 2019 - 28th International Conference on Metallurgy and Materials, Conference Proceedings, ISBN 978-80-87294-92-5

Instituce: Ústav jaderné fyziky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0309637

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-438247


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav jaderné fyziky
Konferenční materiály > Příspěvky z konference