The reactor pressure vessel (RPV) is the highest priority key component in nuclear power plants and is considered irreplaceable. The embrittlement of RPV steels is in general thought to be caused primarily by the formation of Cu-enriched clusters, the formation of matrix damage features, and the segregation of P atoms at grain boundaries. The displacement cascades in Fe-0.05Cu and Fe-0.3Cu alloys were studied by molecular dynamics in the current work. It was found that substitutional Cu does not significantly affect the amount, annihilation and recombination of defect produced by displacement cascade but affects the vacancy migration energy significantly. The self-interstitial atoms (SIAs) clusters and vacancies clusters are formed during the displacement cascades and affected by irradiation temperature.
YANG Wen
,
HE Xin-Fu
. MOLECULAR DYNAMICS SIMULATION OF MATRIX RADIATION DAMAGE IN Fe-Cu ALLOY[J]. Acta Metall Sin, 2011
, 47(7)
: 954
-957
.
DOI: 10.3724/SP.J.1037.2011.00207
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