Development and Properties of Uranium-Base Alloys Corrosion Resistant in High Temperature Water Part IV - Radiation Stability of Uranium-Base Alloys; WAPD-127, Part IV

Pittsburgh, PA: Westinghouse Electric Corporation, Bettis Plant, 1957. Presumed First Edition, First printing thus. Wraps. 117, [1] pages. Illustrations. Figures. Tables. Tabular data. References. Ink marks on front cover. Staple remains in front cover. Staple holes on several early pages noted. Ex-Los Alamos Scientific Laboratory libraries. LASL stamp on back cover. The authors include M. L. Bleiberg, J. D. Eichenberg, R. H. Fillnow, and the Editor, L. J. Jones. Radiation stability is one of the major requirements in the overall program of alloy development for the Pressurized Water Reactor. Critical properties of the fuel, such as dimensional stability and corrosion resistance in high temperature water, must not deteriorate under neutron bombardment to the point that the fuel element integrity would be seriously jeopardized during core life, even in the case of clad penetration. In order to accumulate information on the effects of radiation on dimensional stability, corrosion resistance, and related factors such as density, mechanical, and structural changes, an extensive experimental program was undertaken. The effects of pile irradiations on the physical properties and corrosion resistance of U-- Mo, U-- Nb; and U--Si alloys are reported. The dimensional stability under irradiation of the gamma phase U-- Mo and U-- Nb alloys is excellent; however, an isotropic volume increase of 4 to 6% per wt.% burnup may limit the ultimate fuel element life. Corrosion resistance of the gamma-phase alloys appears to be improved when subjected to s neutron field; this is attributed to an irradiation induced stabilization of the gamma phases. The U/ sub 3/Si alloy, on the other hand, suffered severe deterioration, particularly of corrosion resistance. Changes in electrical resistivity, hardness, mechanical properties, and crystal structure are presented and the mechanisms producing the observed changes discussed. Condition: Good.

Keywords: Uranium-base Alloy, Corrosion Resistance, Radiation Stability, U-Mo, U-Nb, U-Si, Fuel Element, Gamma-Phase Alloy, Irradiation-induced stabilization, Electrical Resistivity, Mechanical Properties, Crystal Structure, Hardness

[Book #84119]

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