Plasticity performance of Al 0.5 CoCrCuFeNi high-entropy alloys under nanoindentation
Journal Article
·
· International Journal of Iron and Steel Research
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
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); USDOE Office of Fossil Energy (FE); National Energy Technology Laboratory (NETL); USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1377894
- Journal Information:
- International Journal of Iron and Steel Research, Vol. 24, Issue 4; ISSN 1006-706X
- Country of Publication:
- United States
- Language:
- English
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