Avchaciov, K. A. ; Ritter, Y. ; Djurabekova, F. ; Nordlund, K. ; Albe, K. (2014)
Effect of ion irradiation on structural properties of Cu64Zr36 metallic glass.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 341
doi: 10.1016/j.nimb.2014.06.036
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
By means of molecular dynamics simulations, we study the low energy ion irradiation effect on the short-range order (SRO) of metallic glass structures. Breaking the topological SRO in a controlled manner may lead to desirable modifications of deformation behavior of glass structures. These changes in SRO were also found to be stable during the thermal annealing at temperatures below the glass transition temperature (T-g). The tensile deformation simulations performed for the Cu-Zr glass nanorods show that irradiated nanorods become softer compared to the pristine ones, changing the yielding mechanism from a slip via formation of a single shear band to formation of a broad necking region.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Avchaciov, K. A. ; Ritter, Y. ; Djurabekova, F. ; Nordlund, K. ; Albe, K. |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of ion irradiation on structural properties of Cu64Zr36 metallic glass |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Dezember 2014 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| Jahrgang/Volume einer Zeitschrift: | 341 |
| DOI: | 10.1016/j.nimb.2014.06.036 |
| Kurzbeschreibung (Abstract): | By means of molecular dynamics simulations, we study the low energy ion irradiation effect on the short-range order (SRO) of metallic glass structures. Breaking the topological SRO in a controlled manner may lead to desirable modifications of deformation behavior of glass structures. These changes in SRO were also found to be stable during the thermal annealing at temperatures below the glass transition temperature (T-g). The tensile deformation simulations performed for the Cu-Zr glass nanorods show that irradiated nanorods become softer compared to the pristine ones, changing the yielding mechanism from a slip via formation of a single shear band to formation of a broad necking region. |
| Freie Schlagworte: | Metallic glasses, Ion irradiation, Molecular dynamics, Mechanical properties |
| Zusätzliche Informationen: | Spring Meeting of the European Materials Research Society EMRS Symposium W: "Ion Beam Applications: New and Innovative Approaches" |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 02 Mär 2015 10:25 |
| Letzte Änderung: | 02 Mär 2015 10:25 |
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