Wang, Xiaolei ; Jiang, Feng ; Hahn, Horst ; Li, Ju ; Gleiter, Herbert ; Sun, Jun ; Fang, Jixiang (2016)
Sample size effects on strength and deformation mechanism of Sc 75 Fe 25 nanoglass and metallic glass.
In: Scripta Materialia, 116
doi: 10.1016/j.scriptamat.2016.01.036
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The mechanical properties and deformation mechanism of Sc75Fe25 nanoglass and Sc75Fe25 metallic glass pillars with diameter from 2 gm to 95 nm were investigated by means of ex-situ and in-situ compression tests. The results showed that the yield strength and deformation mechanism in the metallic glass were size-dependent while these in the nanoglass were not. It is suggested that the reduced shear band nucleation sites in metallic glass with decreasing sample size results in the increased yield strength and transition of deformation mode. In contrast, the glass/glass interfaces in nanoglass which have reduced density could serve as shear band nucleation sites and therefore promote multiple shear banding. (C) 2016 Elsevier Ltd. All rights reserved.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Wang, Xiaolei ; Jiang, Feng ; Hahn, Horst ; Li, Ju ; Gleiter, Herbert ; Sun, Jun ; Fang, Jixiang |
| Art des Eintrags: | Bibliographie |
| Titel: | Sample size effects on strength and deformation mechanism of Sc 75 Fe 25 nanoglass and metallic glass |
| Sprache: | Englisch |
| Publikationsjahr: | 15 April 2016 |
| Verlag: | Pergamon-Elsevier Science Ltd |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scripta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 116 |
| DOI: | 10.1016/j.scriptamat.2016.01.036 |
| Kurzbeschreibung (Abstract): | The mechanical properties and deformation mechanism of Sc75Fe25 nanoglass and Sc75Fe25 metallic glass pillars with diameter from 2 gm to 95 nm were investigated by means of ex-situ and in-situ compression tests. The results showed that the yield strength and deformation mechanism in the metallic glass were size-dependent while these in the nanoglass were not. It is suggested that the reduced shear band nucleation sites in metallic glass with decreasing sample size results in the increased yield strength and transition of deformation mode. In contrast, the glass/glass interfaces in nanoglass which have reduced density could serve as shear band nucleation sites and therefore promote multiple shear banding. (C) 2016 Elsevier Ltd. All rights reserved. |
| Freie Schlagworte: | Nanoglasses, Metallic glasses, In-situ, Strength, Shear band nucleation |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 21 Jul 2017 11:21 |
| Letzte Änderung: | 21 Jul 2017 11:21 |
| PPN: | |
| Sponsoren: | The authors acknowledge the financial support from the National Natural Science Foundation of China (NSFC) under Grant Nos. 51171138, 51171139, and 51321003, Ph.D. J.L. acknowledges the support by NSF DMR-1120901 and DMR-1410636., HH and HG are grateful to the Deutsche Forschungsgemeinschaft under Grant HA 1344/30-1 of the SPP1594 program., The authors are also grateful for the support from Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano). |
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