Abstract
The statistical and dynamic behaviors of the displacement-load curves of a high-entropy alloy, Al0.5 CoCrCuFeNi, were analyzed for the nanoindentation performed at two temperatures. Critical behavior of serrations at room temperature and chaotic flows at 200 °C were detected. These results are attributed to the interaction among a large number of slip bands. For the nanoindentation at room temperature, recurrent partial events between slip bands introduce a hierarchy of length scales, leading to a critical state. For the nanoindentation at 200 °C, there is no spatial interference between two slip bands, which is corresponding to the evolution of separated trajectory of chaotic behavior.
Original language | English (US) |
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Pages (from-to) | 390-396 |
Number of pages | 7 |
Journal | Journal of Iron and Steel Research International |
Volume | 24 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2017 |
Keywords
- Chaotic behavior
- Critical behavior
- High-entropy alloys
- Nanoindentation
ASJC Scopus subject areas
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry