Kalcher, Constanze and Adjaoud, Omar and Rohrer, Jochen and Stukowski, Alexander and Albe, Karsten (2017):
Reinforcement of nanoglasses by interface strengthening.
In: Scripta Materialia, 141pp. 115-119, ISSN 13596462,
[Online-Edition: https://doi.org/10.1016/j.scriptamat.2017.08.004],
[Article]
Abstract
Nanoglasses consist of glassy grains connected by an amorphous interface. While internal interfaces in nanoglasses help to prevent brittle failure, they are usually not beneficial to the glasses overall strength. In this molecular dynamics study, we manipulate the glass–glass interfaces of a Cu–Zr nanoglass, such that they are replaced by stronger crystalline interphases. Analogous to grain boundary strengthening in crystalline materials, we show that it is possible to reinforce the nanoglass without compromising its ductility.
| Item Type: | Article |
|---|---|
| Erschienen: | 2017 |
| Creators: | Kalcher, Constanze and Adjaoud, Omar and Rohrer, Jochen and Stukowski, Alexander and Albe, Karsten |
| Title: | Reinforcement of nanoglasses by interface strengthening |
| Language: | English |
| Abstract: | Nanoglasses consist of glassy grains connected by an amorphous interface. While internal interfaces in nanoglasses help to prevent brittle failure, they are usually not beneficial to the glasses overall strength. In this molecular dynamics study, we manipulate the glass–glass interfaces of a Cu–Zr nanoglass, such that they are replaced by stronger crystalline interphases. Analogous to grain boundary strengthening in crystalline materials, we show that it is possible to reinforce the nanoglass without compromising its ductility. |
| Journal or Publication Title: | Scripta Materialia |
| Volume: | 141 |
| Uncontrolled Keywords: | Metallic glass, Grain interfaces, Tension test, Molecular dynamics, Nanoglass |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Materials Modelling Zentrale Einrichtungen > University IT-Service and Computing Centre (HRZ) > Hochleistungsrechner 11 Department of Materials and Earth Sciences > Material Science Zentrale Einrichtungen > University IT-Service and Computing Centre (HRZ) 11 Department of Materials and Earth Sciences Zentrale Einrichtungen |
| Date Deposited: | 24 Aug 2017 14:42 |
| Official URL: | https://doi.org/10.1016/j.scriptamat.2017.08.004 |
| Identification Number: | doi:10.1016/j.scriptamat.2017.08.004 |
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