Abstract
The indentation creep behavior and creep strain-rate sensitivity (SRS) of the CoCrFeNiAl0.3 (Al0.3 for simplicity) high-entropy alloy are investigated by nanoindentation. Al0.3 exhibits much higher modulus and nanohardness values than CoNi due to the addition of Al. A significant creep resistance and a lower SRS value for Al0.3 are obtained as compared with CoNi. For high loading rate, the SRS value is enhanced by one order of magnitude, and the introduced Kelvin model is successfully applied to the constitutive description of the current creep behavior.
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