About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
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Symposium
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12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Deconvolution Analysis of AE Due to Kinking in Mg-Y-Zn Alloy |
Author(s) |
Takayuki Shiraiwa, Naoya Hamada, Fabien Briffod, Manabu Enoki |
On-Site Speaker (Planned) |
Takayuki Shiraiwa |
Abstract Scope |
Compression tests of directionally-solidified (DS) Mg-Y-Zn alloys with long-period stacking ordered (LPSO) phase were conducted to observe the kinking behavior by a combination of a high-speed camera and acoustic emission (AE) method. The formation and propagation of kink bands were successfully captured at a sampling rate of 5M FPS. The kink bands were generated in a time of several microseconds. In-situ observations of twinning in pure Mg were also performed for comparison. The formation speed of the kink bands was almost constant regardless of its length in DS Mg-Y-Zn alloy, whereas the formation speed of the twin band is correlated with its band sizes in pure Mg. In order to evaluate the dynamic behavior of kinking quantitatively, deconvolution analysis was conducted for AE waveforms corresponding to kink band formation. Based on the results of deconvolution analysis, the statistics of the dynamic behavior of kinking will be discussed. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |