Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms
The study of deformation twinning has long history. However new, sometimes surprising, findings have shown that the phenomenon of deformation twinning still is not completely understood. During recent years, some debates are taking place in the scientific literature concerning deformation twinning m...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/9/1134 |
| _version_ | 1797556111642984448 |
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| author | Andriy Ostapovets Anna Serra |
| author_facet | Andriy Ostapovets Anna Serra |
| author_sort | Andriy Ostapovets |
| collection | DOAJ |
| description | The study of deformation twinning has long history. However new, sometimes surprising, findings have shown that the phenomenon of deformation twinning still is not completely understood. During recent years, some debates are taking place in the scientific literature concerning deformation twinning mechanisms in metals with hcp structure. These debates deal with the importance of special twin boundary dislocations named disconnections, growth and nucleation of twins, non-Schmid behavior of twinning, difference of deformation produced by twins from simple shear. They invoked new propositions for atomistic mechanisms of deformation twinning. The purpose of this review is to compare the classical theories of interfacial defects with the new findings and prove that many of these findings can be understood in terms of these well-established theories. The main attention is paid to summarizing the explanations of different phenomena in terms of disconnection mechanisms in order to show that there is no contradiction between these mechanisms and the new findings. |
| first_indexed | 2024-03-10T16:57:08Z |
| format | Article |
| id | doaj.art-ad8c42409da3495cb6d309a9861562a8 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T16:57:08Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-ad8c42409da3495cb6d309a9861562a82023-11-20T11:06:15ZengMDPI AGMetals2075-47012020-08-01109113410.3390/met10091134Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection MechanismsAndriy Ostapovets0Anna Serra1CEITEC-IPM, Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 61600 Brno, Czech RepublicDepartment of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Jordi Girona, 1-3, C-2, Campus Nord, 08034 Barcelona, SpainThe study of deformation twinning has long history. However new, sometimes surprising, findings have shown that the phenomenon of deformation twinning still is not completely understood. During recent years, some debates are taking place in the scientific literature concerning deformation twinning mechanisms in metals with hcp structure. These debates deal with the importance of special twin boundary dislocations named disconnections, growth and nucleation of twins, non-Schmid behavior of twinning, difference of deformation produced by twins from simple shear. They invoked new propositions for atomistic mechanisms of deformation twinning. The purpose of this review is to compare the classical theories of interfacial defects with the new findings and prove that many of these findings can be understood in terms of these well-established theories. The main attention is paid to summarizing the explanations of different phenomena in terms of disconnection mechanisms in order to show that there is no contradiction between these mechanisms and the new findings.https://www.mdpi.com/2075-4701/10/9/1134twinningplasticityhcp metalsdisconnectionsdislocationsfaceting |
| spellingShingle | Andriy Ostapovets Anna Serra Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms Metals twinning plasticity hcp metals disconnections dislocations faceting |
| title | Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms |
| title_full | Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms |
| title_fullStr | Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms |
| title_full_unstemmed | Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms |
| title_short | Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms |
| title_sort | review of non classical features of deformation twinning in hcp metals and their description by disconnection mechanisms |
| topic | twinning plasticity hcp metals disconnections dislocations faceting |
| url | https://www.mdpi.com/2075-4701/10/9/1134 |
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