Swelling and void-induced embrittlement of austenitic stainless steel irradiated to 73-82 dpa at 335-365 deg C

Conventional wisdom holds that void swelling of stainless steels falls strongly in swelling rate at temperatures below 400 deg C and should not reach large swelling levels even at high dpa levels. This perception may be incorrect as demonstrated by an irradiation of the Russian steel EI-847 which, i...

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Veröffentlicht in:Journal of nuclear materials 1998-10, Vol.258-263, p.1613-1617
Hauptverfasser: Porollo, S I, Vorobjev, A N, Konobeev, Y V, Dvoriashin, A M, Krigan, V M, Budylkin, N I, Mironova, E G, Garner, F A
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container_end_page 1617
container_issue
container_start_page 1613
container_title Journal of nuclear materials
container_volume 258-263
creator Porollo, S I
Vorobjev, A N
Konobeev, Y V
Dvoriashin, A M
Krigan, V M
Budylkin, N I
Mironova, E G
Garner, F A
description Conventional wisdom holds that void swelling of stainless steels falls strongly in swelling rate at temperatures below 400 deg C and should not reach large swelling levels even at high dpa levels. This perception may be incorrect as demonstrated by an irradiation of the Russian steel EI-847 which, in both the annealed and cold worked conditions, reached swelling levels in the BN-350 fast reactor on the order of > = 10% at temperatures of 335-365 deg C and doses of 73-82 dpa. Consistent with expectations based on earlier studies of other steels at these swelling levels, the steel was found to be exceptionally brittle and to have failed with a rather unusual failure mode.
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title Swelling and void-induced embrittlement of austenitic stainless steel irradiated to 73-82 dpa at 335-365 deg C
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