Influence of neutron irradiation and ageing on behavior of SAV-1 reactor alloy

K.V. Tsay; O.V. Rofman; V.V. Kudryashov; A.V. Yarovchuk; O.P. Maksimkin

doi:https://doi.org/10.1016/j.net.2021.04.025

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자료유형: 학술저널

저자정보: K.V. Tsay (Institute of Nuclear Physics, Almaty, 050032, Kazakhstan) O.V. Rofman (Institute of Nuclear Physics, Almaty, 050032, Kazakhstan) V.V. Kudryashov (Institute of Nuclear Physics, Almaty, 050032, Kazakhstan) A.V. Yarovchuk (Institute of Nuclear Physics, Almaty, 050032, Kazakhstan) O.P. Maksimkin (Institute of Nuclear Physics, Almaty, 050032, Kazakhstan)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제10호

발행연도: 2021.10

수록면: 3,398 - 3,405 (8page)

DOI: https://doi.org/10.1016/j.net.2021.04.025

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This study observed the effect of neutron irradiation and ageing on the microstructure, hardness, andcorrosion resistance of SAV-1 (AleMgeSi) alloy. The investigated material was irradiated with neutronsto fluences of 1021e1026 n/m2 in the WWR-K research reactor and kept in dry storage. Long-term irradiation led to an increase in hardness of the alloy and a deterioration of pitting corrosion resistance. Postirradiation ageing for 1 h at 100e300 C resulted in a decrease in microhardness of the irradiated SAV-1. The effect of post-irradiation ageing on pitting corrosion was made clear through the formation ofGuinier-Preston zones and secondary precipitates in the Al matrix. Ageing at 250 C corresponded to thedevelopment of stable microstructure and the highest corrosion resistance for the irradiated samples. Mg2Si, Si, and needle-shaped b00 precipitates were formed in SAV-1 alloy that was irradiated with lowfluences. b00 and clusters of rod-shaped B-type precipitates were observed in highly irradiated samples. The precipitates were similar to those seen in non-irradiated pseudo-binary AleMg2Si alloys with Siexcess.

#SAV-1 aluminum alloy #Neutron irradiation #Fluence #Ageing #Precipitate #Corrosion

참고문헌 (20)

참고문헌 신청

A. Hoffman / 2004 / Effect of Nuclear Reactions on the Properties of Al-Mg-Si Alloys after Long-Time Exploitation in Research Reactors :10

1998 / Renewal of the Reactor WWR-K Operation, Collection of articles / IAE NNC RK :248

H. Nielsen / 1979 / Aluminium, Metallurgiya / Verlag GmbH& Co :1056

E. Z. Sturken / 1979 / Irradiation effects in magnesium and aluminum alloys / J. Nucl. Mater 82:39~53

Z. E. Ostrovsky / 1971 / the effect of neutron irradiation on second phase precipitation processes / Transactions ISIJ 11:289~293

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