Swelling of Uranium and Uranium Alloys on Postirradiation Annealing PDF Download
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Author: B. A. Loomis
Publisher:
ISBN:
Category : Fuel burnup (Nuclear engineering).
Languages : en
Pages : 46
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Book Description
The swelling of uranium and of a few selected uranium alloys on post-irradiation annealing was investigated by utilizing density measurements in conjunction with the observation of pores in the microstructures of annealed specimens. Specimens were irradiated to about 0.3 at.% burnup in a constrained condition at approximately 275 deg C and were subsequently pulse annealed. The amount of swelling was found to be less than 1% for U specimens that were pulse annealed up to 75 hr at temperatures below 550 deg C; the amount of swelling, however, increased considerably on annealing at temperatures between 550 and 650 deg C. Specimens pulse annealed up to 75 hr at 618 deg C decreased in density by approximately 18%. The swelling was accompanied by the formation of bubbles on grain boundaries in recrystallized regions. The observations suggest that recrystallization is a necessary prerequisite for pronounced swelling in the alpha phase.
Author: B. A. Loomis
Publisher:
ISBN:
Category : Fuel burnup (Nuclear engineering).
Languages : en
Pages : 46
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Book Description
The swelling of uranium and of a few selected uranium alloys on post-irradiation annealing was investigated by utilizing density measurements in conjunction with the observation of pores in the microstructures of annealed specimens. Specimens were irradiated to about 0.3 at.% burnup in a constrained condition at approximately 275 deg C and were subsequently pulse annealed. The amount of swelling was found to be less than 1% for U specimens that were pulse annealed up to 75 hr at temperatures below 550 deg C; the amount of swelling, however, increased considerably on annealing at temperatures between 550 and 650 deg C. Specimens pulse annealed up to 75 hr at 618 deg C decreased in density by approximately 18%. The swelling was accompanied by the formation of bubbles on grain boundaries in recrystallized regions. The observations suggest that recrystallization is a necessary prerequisite for pronounced swelling in the alpha phase.
Author: A. Boltax
Publisher:
ISBN:
Category : Uranium
Languages : en
Pages : 80
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Book Description
Author: A. A. Bauėr
Publisher:
ISBN:
Category : Nuclear fuel elements
Languages : en
Pages : 150
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Book Description
Author: B. A. Loomis
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 24
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Book Description
A specimen of 1100 aluminum which was heavily deformed by rolling was also annealed in a manner similar to the irradiated materials. The density of the aluminum at room temperature increased after pulse anneals at temperatures up to 600 deg C, and the hardness decreased after annealing at temperatures above 300 deg C.
Author:
Publisher:
ISBN:
Category : Nuclear reactors
Languages : en
Pages : 192
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Book Description
Author: Ruth Ann Newman
Publisher:
ISBN:
Category : Nuclear fuel elements
Languages : en
Pages : 296
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Book Description
Author: Leonard E. Link
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 636
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Book Description
Author:
Publisher:
ISBN:
Category : Nuclear reactors
Languages : en
Pages : 316
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Book Description
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 670
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Book Description
Author: Institute of Metals
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 668
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Book Description
Issues for Sept. 1951- include the Bulletin.
