Effect of preinjected helium on the response of V-20Ti pressurized tubes to neutron irradiation

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Vanadium-205 titanium tubes, pressurized to stresses of 34 and 39 MPa, were irradiated in the Experimental Breeder Reactor (EBR-II) at 700/sup 0/C to a displacement damage level of 22 dpa. Sections of the tubes were injected with 15 appM He prior to irradiation to determine ethe effect of helium on the microstructural and creep response of this alloy to irradiation. It was found that helium promoted cavity formation, primarily within existing precipitates, but total swelling remained low. Helium also significantly enhanced creep deformation. The results indicate that the increase in creep deformation in the presence of helium may be very ... continued below

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Pages: 18

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Vitek, J.M.; Braski, D.N. & Horak, J.A. January 1, 1986.

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Description

Vanadium-205 titanium tubes, pressurized to stresses of 34 and 39 MPa, were irradiated in the Experimental Breeder Reactor (EBR-II) at 700/sup 0/C to a displacement damage level of 22 dpa. Sections of the tubes were injected with 15 appM He prior to irradiation to determine ethe effect of helium on the microstructural and creep response of this alloy to irradiation. It was found that helium promoted cavity formation, primarily within existing precipitates, but total swelling remained low. Helium also significantly enhanced creep deformation. The results indicate that the increase in creep deformation in the presence of helium may be very sensitive to stress.

Physical Description

Pages: 18

Notes

NTIS, PC A02/MF A01.

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  • 2. international conference on fusion reactor materials (ICFRM-2), Chicago, IL, USA, 13 Apr 1986

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  • Other: DE86009150
  • Report No.: CONF-860421-17
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 6114935
  • Archival Resource Key: ark:/67531/metadc1112150

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  • January 1, 1986

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  • Feb. 22, 2018, 7:45 p.m.

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  • May 18, 2018, 6:56 p.m.

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Vitek, J.M.; Braski, D.N. & Horak, J.A. Effect of preinjected helium on the response of V-20Ti pressurized tubes to neutron irradiation, article, January 1, 1986; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1112150/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.