Sopu, D. ; Ritter, Y. ; Gleiter, H. ; Albe, K. (2011)
Deformation behavior of bulk and nanostructured metallic glasses studied via molecular dynamics simulations.
In: Phys. Rev. B, 83 (10)
doi: 10.1103/PhysRevB.83.
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this study, we characterize the mechanical properties of Cu64Zr36 nanoglasses under tensile load by means of large-scale molecular dynamics simulations and compare the deformation behavior to the case of a homogeneous bulk glass. The simulations reveal that interfaces act as precursors for the formation of multiple shear bands. In contrast, a bulk metallic glass under uniaxial tension shows inhomogeneous plastic flow confined in one dominant shear band. The results suggest that controlling the microstructure of a nanoglass can pave the way for tuning the mechanical properties of glassy materials.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Sopu, D. ; Ritter, Y. ; Gleiter, H. ; Albe, K. |
| Art des Eintrags: | Bibliographie |
| Titel: | Deformation behavior of bulk and nanostructured metallic glasses studied via molecular dynamics simulations |
| Sprache: | Englisch |
| Publikationsjahr: | 23 März 2011 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Phys. Rev. B |
| Jahrgang/Volume einer Zeitschrift: | 83 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.1103/PhysRevB.83. |
| URL / URN: | http://prb.aps.org/abstract/PRB/v83/i10/e100202 |
| Kurzbeschreibung (Abstract): | In this study, we characterize the mechanical properties of Cu64Zr36 nanoglasses under tensile load by means of large-scale molecular dynamics simulations and compare the deformation behavior to the case of a homogeneous bulk glass. The simulations reveal that interfaces act as precursors for the formation of multiple shear bands. In contrast, a bulk metallic glass under uniaxial tension shows inhomogeneous plastic flow confined in one dominant shear band. The results suggest that controlling the microstructure of a nanoglass can pave the way for tuning the mechanical properties of glassy materials. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
| Hinterlegungsdatum: | 22 Feb 2012 16:16 |
| Letzte Änderung: | 20 Sep 2018 12:38 |
| PPN: | |
| Sponsoren: | The authors acknowledge the financial support of the Deutsche Forschungsgemeinschaft (DFG) through Project No. Al-578-6., One of us (H.G.) was supported by Karlsruhe Institute of Technology (KIT) through a grant within the NES program., A DAAD-PPP travel grant is also acknowledged. Computing time was made available at HHLR Frankfurt and Darmstadt as well as by CSC Julich. |
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