| Autor: |
Chen, D. Z., Gu, X. W., An, Q., Goddard III, W. A., Greer, J. R. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 2/9/2015, Vol. 106 Issue 6, p1-5, 5p, 1 Diagram, 1 Chart, 3 Graphs |
| Abstrakt: |
In-situ nano-tensile experiments on 70 nm-diameter free-standing electroplated NiP metallic glass nanostructures reveal tensile true strains of ~18%, an amount comparable to compositionally identical 100 nm-diameter focused ion beam samples and ~3 times greater than 100 nm-diameter electroplated samples. Simultaneous in-situ observations and stress-strain data during post-elastic deformation reveal necking and work hardening, features uncharacteristic for metallic glasses. The evolution of free volume within molecular dynamics-simulated samples suggests a free surfacemediated relaxation mechanism in nano-sized metallic glasses. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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