Production Test IP-378-A: Evaluation of heat treatment variables during high temperature irradiation in the KER loops

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Description

The objective of this production test is to compare the dimensional and structural behavior of fuel elements with various heat treatments during irradiation at conditions similar to those anticipated for the NPR. Zircaloy-2 jacketed unalloyed natural uranium fuel elements of the same diametral dimensions an those anticipated for the N Reactor inner fuel tube, incorporating various heat treatments, will be irradiated to about 2000 MWD/T in the KER Loops. The elements will be enclosed in a Zircaloy-2 sleeve to provide a more balanced flow distribution through and around the pieces. An optimum heat treatment for N Reactor fuel elements providing … continued below

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6 p.

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Kratzer, W. K. November 21, 1960.

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  • Hanford Atomic Products Operation
    Publisher Info: General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
    Place of Publication: Richland, Washington

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Description

The objective of this production test is to compare the dimensional and structural behavior of fuel elements with various heat treatments during irradiation at conditions similar to those anticipated for the NPR. Zircaloy-2 jacketed unalloyed natural uranium fuel elements of the same diametral dimensions an those anticipated for the N Reactor inner fuel tube, incorporating various heat treatments, will be irradiated to about 2000 MWD/T in the KER Loops. The elements will be enclosed in a Zircaloy-2 sleeve to provide a more balanced flow distribution through and around the pieces. An optimum heat treatment for N Reactor fuel elements providing minimum fuel distortion through control of uranium grain size and orientation has not been determined. This production test provides for the irradiation of fuel elements nearly equivalent to N Reactor inner tubes in size, geometry, and temperature conditions during irradiation. These elements have been subjected to varying heat treatments providing a range of grain sizes and degrees of orientation. Post-irradiation examination of the elements will show the fuel element distortion associated with each heat treatment and provide information on which to base further irradiation tenting in the development of a heat treating procedure for N Reactor fuel elements.

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6 p.

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OSTI as DE94017107; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

Other Information: DN: Declassified

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  • November 21, 1960

Added to The UNT Digital Library

  • Nov. 28, 2018, 2:33 p.m.

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  • Nov. 12, 2024, 2:53 a.m.

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Kratzer, W. K. Production Test IP-378-A: Evaluation of heat treatment variables during high temperature irradiation in the KER loops, report, November 21, 1960; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1387495/: accessed February 15, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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