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Effect of interstitial carbon on the evolution of early-stage irradiation damage in equi-atomic FeMnNiCoCr high-entropy alloys
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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7
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Journal of Applied Physics, Volume 127, issue 2, pp. 1-7
Abstract
Owing to their excellent radiation tolerance, some of the high-entropy alloys (HEAs) are considered as potential candidates for structural materials in extreme conditions. In order to shed light on the early-stage irradiation damage in HEAs, we performed positron annihilation spectroscopy on hydrogen implanted equiatomic FeMnNiCoCr and interstitial carbon-containing FeMnNiCoCr HEAs. We reveal primary damage as monovacancies in low dose irradiated HEAs. The enhancement of Frenkel pair recombination by C addition is observed in C-containing HEAs. In addition, the C interstitials suppress the vacancy cluster formation in high dose irradiated HEAs.
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Lu, E, Makkonen, I, Mizohata, K, Li, Z, Räisänen, J & Tuomisto, F 2020, 'Effect of interstitial carbon on the evolution of early-stage irradiation damage in equi-atomic FeMnNiCoCr high-entropy alloys', Journal of Applied Physics, vol. 127, no. 2, 025103, pp. 1-7. https://doi.org/10.1063/1.5130748