An Initial Study of the Wear and Galling of Various Fuel Element Support Materials of Autoclaved Zircaloy-2

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Description

An ex-reactor test stimulating the charging of a tubular fuel element in a Zircaloy-2 process tube showed a problem of severe process tube scratching and galling may occur if metal sliding contact fuel element supports are used. Both the fuel supports and the process tubes were autoclaved. Although the conditions of this test were severe in that the sharp edges rather than a flat surface of the supports were in contact with the process tube, it pointed out the potential problem of galling by point on small area contact supports on heavy fuel elements. This difficulty had not been observed … continued below

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9 pages : illustrations

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Weber, J. W. January 14, 1960.

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  • Main Title: An Initial Study of the Wear and Galling of Various Fuel Element Support Materials of Autoclaved Zircaloy-2
  • Series Title: HW (Series)
  • Series Title: Hanford Works Reports
  • Added Title: Hanford Works Report HW-63730

Description

An ex-reactor test stimulating the charging of a tubular fuel element in a Zircaloy-2 process tube showed a problem of severe process tube scratching and galling may occur if metal sliding contact fuel element supports are used. Both the fuel supports and the process tubes were autoclaved. Although the conditions of this test were severe in that the sharp edges rather than a flat surface of the supports were in contact with the process tube, it pointed out the potential problem of galling by point on small area contact supports on heavy fuel elements. This difficulty had not been observed with the lighter tubular or cluster fuel elements used in KER irradiation. In addition to the loss of metal and thinning of the process tube after a number of charge-discharge operations, these scratches may lead to localized corrosion or act as points of stress concentration.

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9 pages : illustrations

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Digitized from microopaque cards (1).

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  • SuDoc Number: Y 3.At 7:22/HW-63730
  • Report No.: HW-63730
  • Accession or Local Control No: metadc1255603
  • Archival Resource Key: ark:/67531/metadc1255603

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  • January 14, 1960

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  • Feb. 5, 2022, 7:02 p.m.

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  • July 5, 2023, 12:05 p.m.

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Thumbnail image of item number 1 in: 'An Initial Study of the Wear and Galling of Various Fuel Element Support Materials of Autoclaved Zircaloy-2'.
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Weber, J. W. An Initial Study of the Wear and Galling of Various Fuel Element Support Materials of Autoclaved Zircaloy-2, report, January 14, 1960; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1255603/: accessed September 6, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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