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Original title:
Investigation of deformation mechanisms in textured magnesium alloy
Authors: Dittrich, J. ; Čapek, J. ; Knapek, Michal ; Minárik, P.
Document type: Papers
Conference/Event: Metal 2019 - 28th International Conference on Metallurgy and Materials, Brno (CZ), 20190522
Year: 2019
Language: eng
Abstract: 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.
Keywords: acoustic emission; deformation; EBSD; magnesium; twinning
Project no.: EF16_013/0001794
Funding provider: GA MŠk
Host item entry: METAL 2019 - 28th International Conference on Metallurgy and Materials, Conference Proceedings, ISBN 978-80-87294-92-5
Institution: Nuclear Physics Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0309637
Permalink: http://www.nusl.cz/ntk/nusl-438247
The record appears in these collections:
Research > Institutes ASCR > Nuclear Physics Institute
Conference materials > Papers
Authors: Dittrich, J. ; Čapek, J. ; Knapek, Michal ; Minárik, P.
Document type: Papers
Conference/Event: Metal 2019 - 28th International Conference on Metallurgy and Materials, Brno (CZ), 20190522
Year: 2019
Language: eng
Abstract: 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.
Keywords: acoustic emission; deformation; EBSD; magnesium; twinning
Project no.: EF16_013/0001794
Funding provider: GA MŠk
Host item entry: METAL 2019 - 28th International Conference on Metallurgy and Materials, Conference Proceedings, ISBN 978-80-87294-92-5
Institution: Nuclear Physics Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0309637
Permalink: http://www.nusl.cz/ntk/nusl-438247
The record appears in these collections:
Research > Institutes ASCR > Nuclear Physics Institute
Conference materials > Papers
Record created 2021-03-28, last modified 2023-12-06