METALLURGY DIVISION QUARTERLY REPORT FOR JULY, AUGUST, AND SEPTEMBER 1957
Advanced Water Reactor Program. Three firings were made of initial closed-porosity fuel pellet bodies. Each firing coatained pellets of the composition 90 wt.% ThO/sub 2/-10 wt.%fl U0/sub 2/ with various additives and firing variables. Fast Power Breeder Reactor Program. To determine the potential usefulness of a Zr-5 wt. % Pu alloy, the fabricability of the alloy was tested. The manufacture of rod stock from which fuel and blanket elements for the Mark III loading of the EBR-1 were prcduced has been completed. The effect of irradiation on extruded and heat-treated U-2 wt.% Zr alloy for the EBR- 1 is reported. Fabrication procedures for making graphite-U/sub 3/O/sub 8/ test specimens for the TREAT Reactor were investigated. Advanced Engineering and Development. Ultrasonic bond tests were conducted on 590 EBR-1 Mark III blanket fuel elemeats. The blanket rods and part of the fuel rcds for the EBR-1 Mark III loading are being checked for cladding thickness by an eddy current system. Investigations of corrosionresistant Zr-Nb alloy were coatinued. Corrosion of MR alloys is being studied Ln support of the Mighty Mouse reactor program. Dynamic corrosion tests were performed on aluminum alloys, and results are included. Prcduction, Treatment, and Properties of Materials. The progress of the program of preparing highpurity Pu by fused salt electrolysis is summarized. Velocities of ultrasonic waves propagated in directions suitable for determining the room- temperature elastic moduli C/sub 12/, C/sub 13/, and C/sub 23/ of alpha U were determined. investigation of recrystallization in heavily coldrolled alpha- uranium sheet without a texture change was essentially concluded during this quarter. Selfdiffasion runs in polycrystalline uranium in the gamma phase, using the sputtering technique, have yielded a tentative value for the diffusion coefficient between 10/sup -8/ and 10/sup -7/ cm/sup 2/second. The preparation of high-purity U-Pan alloys is reponted. The data for the alpha-tobeta transformation temperatures in high-purity U and U-C alloys were confirmed by experiments on new specimens. Microstructure, density, and thermal arrest data were obtained for several injection cast, nominal U-5 wt.%fl fissium and U-8 wt.%fl fissium alloys. Phase diagrams are preseated for U-Mo and U-Ru alloys. Alloy Theory and The Nature of Solids. Four new isomorphs of Ti/sub 2/Ni have been discovered. Effects of Irradiation on Materials. The experimental and analytical work on the radial distribution of thermal neutrons within cylindrically shaped fuel specimens during irradiation was completed. (For preceding period see ANL-5790.) (W.L.H.)
- Research Organization:
- Argonne National Lab., Lemont, Ill.
- DOE Contract Number:
- W-31-109-ENG-38
- NSA Number:
- NSA-13-002967
- OSTI ID:
- 4311561
- Report Number(s):
- ANL-5797
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
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ADDITIVES- PELLETS- POROSITY- POWER PLANTS- THORIUM OXIDES- URANIUM DIOXIDE- WATER COOLANT
ALLOTROPY- CASTING- COLD WORKING- CONFIGURATION- DENSITY- DIFFUSION- ELASTICITY- ELECTROLYSIS- FISSION PRODUCTS- FUSED SALTS- IMPURITIES- INJECTION- METALLOGRAPHY- MOLYBDENUM ALLOYS- PHASE DIAGRAMS- PLUTONIUM- PLUTONIUM ALLOYS- PRODUCTION- QUANTUM MECHANICS- RECRYSTALLIZATION- ROLLING- RUTHENIUM ALLOYS- SHEETS- SPUTTERING- TEMPERATURE- TESTING- THERMODYNAMICS- ULTRASONICS- URANIUM- URANIUM ALLOYS- URANIUM CARBIDES- URANIUM-ALPHA- URANIUM-BETA- URANIUM-GAMMA- VELOCITY
ALUMINUM ALLOYS- BLANKETS- BONDING- CORROS