Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods
Adaptive sequential k-means (ASK) analysis of acoustic emission (AE) data was used to analyze the sources of AE during compression of three AZ31 magnesium samples with different initial texture. The results were compared to the classical hit-based approach. Observation of the deformed microstructure...
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| Format: | Article |
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MDPI AG
2018-08-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/8/8/644 |
| _version_ | 1811331305049161728 |
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| author | Jan Čapek Michal Knapek Peter Minárik Jan Dittrich Kristián Máthis |
| author_facet | Jan Čapek Michal Knapek Peter Minárik Jan Dittrich Kristián Máthis |
| author_sort | Jan Čapek |
| collection | DOAJ |
| description | Adaptive sequential k-means (ASK) analysis of acoustic emission (AE) data was used to analyze the sources of AE during compression of three AZ31 magnesium samples with different initial texture. The results were compared to the classical hit-based approach. Observation of the deformed microstructure shows that the ASK analysis can distinguish very well between the signal originating in deformation twinning and dislocation slip. Moreover, together with microstructural analysis, the ASK algorithm revealed another source of AE for one of the samples, which was shown to be the double twinning. |
| first_indexed | 2024-04-13T16:18:35Z |
| format | Article |
| id | doaj.art-e10ff1051218488c815a47a83252c315 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-04-13T16:18:35Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e10ff1051218488c815a47a83252c3152022-12-22T02:40:00ZengMDPI AGMetals2075-47012018-08-018864410.3390/met8080644met8080644Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission MethodsJan Čapek0Michal Knapek1Peter Minárik2Jan Dittrich3Kristián Máthis4Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicAdaptive sequential k-means (ASK) analysis of acoustic emission (AE) data was used to analyze the sources of AE during compression of three AZ31 magnesium samples with different initial texture. The results were compared to the classical hit-based approach. Observation of the deformed microstructure shows that the ASK analysis can distinguish very well between the signal originating in deformation twinning and dislocation slip. Moreover, together with microstructural analysis, the ASK algorithm revealed another source of AE for one of the samples, which was shown to be the double twinning.http://www.mdpi.com/2075-4701/8/8/644acoustic emissionmagnesium alloystwinningdislocation slipASK analysisEBSD |
| spellingShingle | Jan Čapek Michal Knapek Peter Minárik Jan Dittrich Kristián Máthis Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods Metals acoustic emission magnesium alloys twinning dislocation slip ASK analysis EBSD |
| title | Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods |
| title_full | Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods |
| title_fullStr | Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods |
| title_full_unstemmed | Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods |
| title_short | Characterization of Deformation Mechanisms in Mg Alloys by Advanced Acoustic Emission Methods |
| title_sort | characterization of deformation mechanisms in mg alloys by advanced acoustic emission methods |
| topic | acoustic emission magnesium alloys twinning dislocation slip ASK analysis EBSD |
| url | http://www.mdpi.com/2075-4701/8/8/644 |
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