The influence of preimplanted helium on the microstructure of neutron irradiated vanadium

Witzenburg, W. van; Mastenbroek, A.; Elen, J.D.

doi:10.1016/0022-3115(82)90762-0

Cited by 10 publications

(1 citation statement)

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“…implanted helium at 420 K [13]. The tritium trick method of doping which must be done at an elevated temperature results in numerous helium and Braski who observed less than 0.2% swelling at 40 dpa in helium doped material [14].…”

Section: Discussionmentioning

confidence: 99%

Tensile and Fracture Properties of EBR-II-Irradiated V-15Cr-5Ti Containing Helium

Grossbeck

Horak

1987

Influence of Radiation on Material Properties: 13th International Symposium (Part II)

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The alloy V-15Cr-5Ti was cyclotron-implanted with 80 appro He and subsequently irradiated in the Experimental Breeder Reactor (EBR-II) to 30 dpa. The same alloy was also irradiated in the 10, 20, and 30% cold-worked conditions. Irradiation temperatures ranged from 400 to 700°C. No significant effects of helium on mechanical properties were found in this temperature range although the neutron irradiation shifted the temperature of transition from cleavage to ductile fracture to about 625°C. Ten percent cold work was found to have a beneficial effect in reducing the tendency for cleavage fracture following irradiation, but high levels (20%) were observed to reduce ductility. Still higher levels (30%) improved ductility by inducing recovery during the elevated-temperature irradiation. Swelling was found to be negligible, but precipitates -titanium oxides or carbonitrides -contained substantial cavities.

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Section: Discussionmentioning

confidence: 99%