Abstract
A novel multi-principal elemental high-entropy alloy (CrFeMoV alloy) has been synthesized based on the composition of void swelling resistant Ferritic steel. The CrFeMoV alloy and P91 ferritic steel with BCC structure were implanted with 130 keV helium ions of different concentrations at room temperature, and their irradiation-induced hardening behavior has been studied through nano-indentation experiments in this work. The bulk equivalent hardness of both the alloys in unirradiated and irradiated conditions has been calculated by fitting the hardness-depth profiles through Kasada’s method after elimination of Softer Substrate Effect. Though both the alloys exhibit a hardening behavior with irradiation, the designed CrFeMoV alloy showed a better hardening resistance at all doses of irradiation with helium ions.
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