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Abnormal grain growth in M-252 and S-816 alloys

Description: Report discussing an experimental investigation was carried out on air- and vacuum-melted M-252 and S-816 alloys to find conditions of heating and hot-working which resulted in abnormal grain growth. The experiments were mainly limited to normal conditions of heating for hot-working and heat treatment and normal temperatures of solution treatment were used to allow grain growth after susceptibility to abnormal grain growth was developed by various experimental conditions. Results indicated that small reductions of essentially strain-free metal were the basic cause of such grain growth.
Date: November 1957
Creator: Decker, R. F.; Rush, A. I.; Dano, A. G. & Freeman, J. W.
Partner: UNT Libraries Government Documents Department
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Accelerations in fighter-airplane crashes

Description: From Introduction: "This report describes some measurements of these quantities obtained by crashing fighter aircraft under circumstances approximating those observed in service."
Date: November 4, 1957
Creator: Acker, Loren W.; Black, Dugald O. & Moser, Jacob C.
Partner: UNT Libraries Government Documents Department
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ACTIVITIES IN LIQUID AND SOLID METAL SYSTEMS. Progress Report for February 1, 1957 to January 31, 1958

Description: The results of the work on activities is the Ma-- Pb--Bi alloys, solubility of Fe--Ni alloys in Pb, and phase distribution in Fe--Ni-- Pb and Fe-- Ni-- Pb--C systems are briefly summarized. (For preceding period see AECU3385.) (J.E.D.)
Date: November 1, 1957
Creator: Elliott, J.F.
Partner: UNT Libraries Government Documents Department
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Additional Measurements on the Army Package Power Reactor Zero Power Experiments: ZPE-1 and ZPE-2

Description: During the course of the ZPE-2 experimental program additional measurements were performed under the Alco Products Research and Development program. Included in this program were the evaluation of various absorber section compositions and reactivity studies designed to facilitate analytical techniques. The results of these measurements are presented. (auth)
Date: November 15, 1957
Creator: Giesler, H. W.
Partner: UNT Libraries Government Documents Department
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Analysis of operational airline data to show the effects of airborne weather radar on the gust loads and operating practices of twin-engine short-haul transport airplanes

Description: From Introduction: "The data for operations both with and without radar installed have been analyzed and the results are presented in this paper. Although these results are of limited extent, they provide a basis for early examination of any trends in the gust loads and associated operating practices which might be attributed to the use of radar."
Date: November 1957
Creator: Copp, Martin R. & Walker, Walter G.
Partner: UNT Libraries Government Documents Department
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Annihilation of Nuclei by Displacement Spikes

Description: At an Octcber, 1957 meeting between USAEC, AECL, and Bettis personnel, the theoretical aspects of the radiation effects on the gamma red and alpha + gamma /sub 2/ transformation in U-Nb alloys were discussed. A theoretical model is presented which involves the annihilation of nuclei of the new phase by the action of displacement spikes. (W.D.M.)
Date: November 1, 1957
Creator: Thomas, D. E.
Partner: UNT Libraries Government Documents Department
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Atmospheric temperature observations to 100,000 feet for several climatological regions of the Northern Hemisphere

Description: Report presenting radiosonde measurements of upper-air temperatures taken over a 5-year period at nine stations in the northern hemisphere are summarized in order to provide information on the temperatures likely to be encountered during airplane and missile operations up to 100,000 feet.
Date: November 1957
Creator: Tolefson, H. B.
Partner: UNT Libraries Government Documents Department

[Bell employee working on the main rotor blade of the XH-40]

Description: Photograph of a Bell employee working on the main rotor blade of the XH-40 from a series of photos of the XH-40 co-op advertising, cannon plugs, heli coil screw lock insert, main rotor blade 114" brass extrusion, American Brass, aluminum main rotor grip, Joy Manufacturing Company fan, engine showing cannon connections.
Date: November 8, 1957
Partner: UNT Libraries Special Collections
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Calculated Equilibrium Constants for Metal-Oxygen Reactions in Molten Uranium Alloys

Description: The equilibrium constants for oxidation reactions occurring in molten U alloys are estimated from thermodynamic principles. Preliminary qualitative information was provided on: the relative ability of various elements to deoxidize U, and the relative stability of the oxide formed as a result. The latter will guide in the selection of oxides as possible crucible materials. Ideas were obtained on possible purification of U by melting. (M.H.R.)
Date: November 1, 1957
Creator: Roland, E. H.
Partner: UNT Libraries Government Documents Department
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CHANGE IN CRITICAL CONCENTRATION IN A CYLINDRICAL REACTOR DUE TO A LONGITUDINAL HOLE

Description: The change in critical concentration due to axial holes of various diameters in a right circular cylinder containing D/sub 2/O and pure U/sup 233/ or U/sup 235/ is discussed. This geometry is intended to represent an aqueous homogeneous reactor with a central void due to rotating flow of the fluid through the core. The critical equations and results of calculations are given. (M.H.R.)
Date: November 1, 1957
Creator: Tobias, M.
Partner: UNT Libraries Government Documents Department
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Checking the Operation of a Nuclear Counting Channel

Description: Quantitative criteria for judging the performance of a nuclear counting channel are discussed. Several procedures for evaluating the performance of the counting channels were combined with statistical tests of significance into one method or test. Statistical purity checks, comparison of actual and theoretical standard deviations, the Fisher variance test, and a chi-square test are described. (M.C.G.)
Date: November 1, 1957
Creator: Relf, K. E.
Partner: UNT Libraries Government Documents Department
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Chemical Processing Department monthly report, October 1957

Description: Record highs were set for Pu output in separations plants and for amount of U processed in Purex. UO{sub 3} production and shipments exceeded schedules. Fabrication of 200 and 250 Model assemblies is reported. Unfabricated Pu production was 8.5% short. Nitric acid recovery in Purex and Redox is reported. Prototype anion exchange system for Pu was tested in Purex. Hinged agitator arms with shear pin feature was installed in UO{sub 3} plant H calciner. Operation of continuous type Task I, II facility improved. DBBP is considered for Recuplex. Methods for Pu in product solutions agreed to within 0. 10%. Purex recycle dock shelter is complete. Other projects are reported.
Date: November 22, 1957
Partner: UNT Libraries Government Documents Department
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