Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique
The paper presents the investigations of the relation between the acoustic emission (AE) and the Portevin-Le Châtelier (PL) phenomena occurring in tensile tested two kinds of aluminium alloys: not-predeformed and predeformed earlier using the technique of accumulative rolling banding (ARB). There ha...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-04-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/695 |
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| author | Andrzej PAWEŁEK Jan KUŚNIERZ Joanna BOGUCKA Zdzisław JASIEŃSKI Zbigniew RANACHOWSKI Przemysław RANACHOWSKI Feliks REJMUND Tomasz DĘBOWSKI |
| author_facet | Andrzej PAWEŁEK Jan KUŚNIERZ Joanna BOGUCKA Zdzisław JASIEŃSKI Zbigniew RANACHOWSKI Przemysław RANACHOWSKI Feliks REJMUND Tomasz DĘBOWSKI |
| author_sort | Andrzej PAWEŁEK |
| collection | DOAJ |
| description | The paper presents the investigations of the relation between the acoustic emission (AE) and the Portevin-Le Châtelier (PL) phenomena occurring in tensile tested two kinds of aluminium alloys: not-predeformed and predeformed earlier using the technique of accumulative rolling banding (ARB). There have been found essential correlations between AE and PL effects in ARB not-predeformed alloys. The tensile tests for ARB predeformed alloys were performed on a series of samples of various degree of work hardening and it has been observed that the correlations between the AE and PL effects are not so pronounced as in the case of ARB not-predeformed alloys. The results of AE measurements obtained using a new software allowed additionally to carry out the spectral analysis of AE signals and, in consequence, to determine the acoustic maps (acoustograms) and the spectral characteristics which are very useful in the discussion of the relations between the non-homogeneous strain mechanisms of the PL effect and the mechanisms of AE events generation. The results are discussed in the context of the existing dislocation models of the PL effect and the theoretical concepts of AE sources. |
| format | Article |
| id | doaj-art-a8c7a6e9dd7e4aaa8ceea2585e23cb80 |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-04-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-a8c7a6e9dd7e4aaa8ceea2585e23cb802025-08-20T02:39:18ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-04-01324Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB techniqueAndrzej PAWEŁEK0Jan KUŚNIERZ1Joanna BOGUCKA2Zdzisław JASIEŃSKI3Zbigniew RANACHOWSKI4Przemysław RANACHOWSKI5Feliks REJMUND6Tomasz DĘBOWSKI7Aleksander Krupkowski Institute of Metallurgy and Materials Science Polish Academy of SciencesAleksander Krupkowski Institute of Metallurgy and Materials Science Polish Academy of SciencesAleksander Krupkowski Institute of Metallurgy and Materials Science Polish Academy of SciencesAleksander Krupkowski Institute of Metallurgy and Materials Science Polish Academy of SciencesInstitute of Fundamental Technological Research Department of Physical Acoustics Polish Academy of SciencesInstitute of Fundamental Technological Research Department of Physical Acoustics Polish Academy of SciencesInstitute of Fundamental Technological Research Department of Physical Acoustics Polish Academy of SciencesInstitute of Fundamental Technological Research Department of Physical Acoustics Polish Academy of SciencesThe paper presents the investigations of the relation between the acoustic emission (AE) and the Portevin-Le Châtelier (PL) phenomena occurring in tensile tested two kinds of aluminium alloys: not-predeformed and predeformed earlier using the technique of accumulative rolling banding (ARB). There have been found essential correlations between AE and PL effects in ARB not-predeformed alloys. The tensile tests for ARB predeformed alloys were performed on a series of samples of various degree of work hardening and it has been observed that the correlations between the AE and PL effects are not so pronounced as in the case of ARB not-predeformed alloys. The results of AE measurements obtained using a new software allowed additionally to carry out the spectral analysis of AE signals and, in consequence, to determine the acoustic maps (acoustograms) and the spectral characteristics which are very useful in the discussion of the relations between the non-homogeneous strain mechanisms of the PL effect and the mechanisms of AE events generation. The results are discussed in the context of the existing dislocation models of the PL effect and the theoretical concepts of AE sources.https://acoustics.ippt.pan.pl/index.php/aa/article/view/695acoustic emission (AE)Portevin-Le Châtelier (PL) effecttensile testdislocationsstrain mechanismnanocrystalline and/or ultra fine-grained structure |
| spellingShingle | Andrzej PAWEŁEK Jan KUŚNIERZ Joanna BOGUCKA Zdzisław JASIEŃSKI Zbigniew RANACHOWSKI Przemysław RANACHOWSKI Feliks REJMUND Tomasz DĘBOWSKI Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique Archives of Acoustics acoustic emission (AE) Portevin-Le Châtelier (PL) effect tensile test dislocations strain mechanism nanocrystalline and/or ultra fine-grained structure |
| title | Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique |
| title_full | Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique |
| title_fullStr | Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique |
| title_full_unstemmed | Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique |
| title_short | Acoustic emission and the Portevin-Le Châtelier effect in tensile tested Al alloys processed by ARB technique |
| title_sort | acoustic emission and the portevin le chatelier effect in tensile tested al alloys processed by arb technique |
| topic | acoustic emission (AE) Portevin-Le Châtelier (PL) effect tensile test dislocations strain mechanism nanocrystalline and/or ultra fine-grained structure |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/695 |
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