Şopu, D. (2023)
STZ-Vortex model: the key to understand STZ percolation and shear banding in metallic glasses.
In: Journal of Alloys and Compounds, 960
doi: 10.1016/j.jallcom.2023.170585
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The fast dynamics and localized nature of shear banding together with the disordered structure of metallic glasses make it difficult to gain an understanding of the mechanism of strain localization and shear band formation during deformation. The most widely accepted theory for the atomic-scale mechanisms of shear banding is related to the percolation of shear transformation zones (STZs). Recently we reassessed and clarified the atomistic details of STZs self-assembly mechanisms and provided a new two-unit model crucial in understanding STZs percolation and shear band formation. This manuscript attempts to provide a brief but up-to-date review on the STZ-Vortex mechanism and its applications in the areas of the shear band dynamics and, in general, in the atomistic description of deformation mechanisms in metallic glasses. The review also identifies a number of unsolved issues concerning deformation and relaxation mechanisms in metallic glasses where the STZ-Vortex model could be successfully applied.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Şopu, D. |
| Art des Eintrags: | Bibliographie |
| Titel: | STZ-Vortex model: the key to understand STZ percolation and shear banding in metallic glasses |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Mai 2023 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Alloys and Compounds |
| Jahrgang/Volume einer Zeitschrift: | 960 |
| DOI: | 10.1016/j.jallcom.2023.170585 |
| Kurzbeschreibung (Abstract): | The fast dynamics and localized nature of shear banding together with the disordered structure of metallic glasses make it difficult to gain an understanding of the mechanism of strain localization and shear band formation during deformation. The most widely accepted theory for the atomic-scale mechanisms of shear banding is related to the percolation of shear transformation zones (STZs). Recently we reassessed and clarified the atomistic details of STZs self-assembly mechanisms and provided a new two-unit model crucial in understanding STZs percolation and shear band formation. This manuscript attempts to provide a brief but up-to-date review on the STZ-Vortex mechanism and its applications in the areas of the shear band dynamics and, in general, in the atomistic description of deformation mechanisms in metallic glasses. The review also identifies a number of unsolved issues concerning deformation and relaxation mechanisms in metallic glasses where the STZ-Vortex model could be successfully applied. |
| Freie Schlagworte: | metallic glass, shear band, shear transformation zone, molecular dynamics simulations |
| Zusätzliche Informationen: | Artikel-ID: 170585 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung Zentrale Einrichtungen Zentrale Einrichtungen > Hochschulrechenzentrum (HRZ) Zentrale Einrichtungen > Hochschulrechenzentrum (HRZ) > Hochleistungsrechner |
| Hinterlegungsdatum: | 10 Jan 2024 06:47 |
| Letzte Änderung: | 10 Jan 2024 11:01 |
| PPN: | 514569921 |
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