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MULTIFACTOR RATIO ANALYSIS (FACTOR ANALYSIS) OF CORROSION DATA USING LOGARITHMIC TRANSFORMATIONS

Description: A simplified analysts method for the examination of complex corrosion data is presented in terms of data from slurry corrosion toroid experiments. This method facilitates the assignment of average effects to specific imposed experimental variables in a test series. It is based on statistical analysis of variance procedures but emphasizes the use of averages and presents results relative to a chosen reference experimental condition. The use of the logarithm of attack rate results in the expression of the effects of variables as ratios or multiplicative terms. (auth)
Date: September 1, 1958
Creator: Compere, E.L.
Partner: UNT Libraries Government Documents Department

Standard Operating Procedure for Rolling 2.75% Enriched Metal at Simonds Saw and Steel Company. Production Order No. 296. (Section 1.4.3.12)

Description: Results indicate the following: buttons of zirconium di-boride, tantalum carbide, and titanium carbide cannot be obtained by electron beam melting; small ingots or buttons of boron can be obtained by electron beam melting, but the boron is still very brittle; and the chromium content of beryllium is reduced by electron beam melting. (auth)
Date: October 20, 1954
Creator: Schlitz, J. F.
Partner: UNT Libraries Government Documents Department

THE EFFECT OF OXIDATION ON THE COMPRESSION STRENGTH OF CS-GBF GRAPHITE

Description: Data on the effects of oxidation on the compressive strength of graphite are presented. Results indicate that a rapid decrease in compressive strength in unirradiated graphite during initial oxidation, with a more gradual decrease during further oxidation. Irradiated samples exhibited greater compressive strength than non-irradiated. (J.R.D.)
Date: April 11, 1956
Creator: Griggs, B.
Partner: UNT Libraries Government Documents Department

SIGMA PLUG WELDING OF SPUN-OVER FUEL CANS

Description: Efforts made to employ the sigma welding process for plug welding Closures in spun-over fuel cans were unsuccessful. No combination of welding conditions was found which would produce satisfactory, leak-tight, plug welds in aluminum. (auth)
Date: December 1, 1952
Creator: Winsor, F.J.
Partner: UNT Libraries Government Documents Department

Cost of Blending Uranium of Two Different U$sup 235$ Isotopic Enrichments. Values of Uranium From The "USAEC Unclassified Pricing List"

Description: >Cost tables and instructions for calculating the cost of blending two different isotopic enrichments of U/sup 235/ to form an intermediate assay are presented. A sample calculation is included and information on reactor fuel cycles is given. (J. R. D.)
Date: October 14, 1958
Partner: UNT Libraries Government Documents Department

THE FABRICATION OF HOLLOW CYLINDRICAL FUEL ELEMENTS FROM URANIUM POWDER

Description: A description is given of the die designs, dry boxes, loading cans, vacuum pots, and other experimental equipment used for fabricating hollow fuel slugs from uranium metal powder. The details of equipment operation are also given, including the die lubrication, die loading, pressing, and inspection procedures. (auth)
Date: June 1, 1954
Creator: Fugardi, J.; King, R.E. & McCullough, H.M.
Partner: UNT Libraries Government Documents Department

VACUUM CASTING OF ALUMINUM-SILICON COATING ON TUBALLOY URANIUM . Final Report on a part of P.A. No. 390-ML-54-S F.S. 17

Description: Welding is used to fabricate titanium and titanium-alloy components for air-frames, Jet engines, missiles, and chemical equipment. Annong the most important considerations in adapting titanium and its alloys to welded components is to use proper welding procedures and to select alloys that have the required weld-joint properties. The chemical and metallurgical characteristics that affect the selection of welding processes and alloys are discussed. Also, information is presented on surface preparation, welding procedures, and quality control. In addition, detailed data on the mechanical properties of welded joints in the commercial grades of titanium and titanium alloys and how these properties are affected by heat treatment and elevated temperatures are presented. (auth)
Date: March 23, 1945
Creator: Schwartz, D.L. & Kurland, L.
Partner: UNT Libraries Government Documents Department

INHIBITION OF HNO$sub 3$-HF CORROSION OF TYPE 304-L STAINLESS STEEL WITH Al(NO$sub 3$)$sub 3$/center dot/9H$sub 2$O

Description: To prevent corrosion of equipment by nitric acid hydrofluoric acid mixture, aluminum nitrate nonohydrate is added to tie up the fluoride, either as aluthinum fluoride or a tight complex. It was found that a solution of nitric acid, hydrofluoric acid, and aluthinum nitrate nonohydraie in which the hydrofluonic acid - aluminum nitrate nonohydrate molar ratio is 3, did not show serious corrosive attack on the 300-series stainless steel. (J.E.D.)
Date: November 18, 1957
Creator: Walker, W.L.
Partner: UNT Libraries Government Documents Department

BRIQUETTING OF MACHINED PLUTONIUM TURNINGS FOR RECYCLE TO THE CASTING OPERATION. Final Report-Production Test 235-6

Description: Twenty-four briquettes of Pu turnings were pressed in a He atmosphere and made into eight castings. Six castings were processed to final form and were comparable to normally processed material. Two castings were recy-cled due to causes other than briquetting. Casting y-ieids. (wt. of casting/wt. of briquettes). were approximately 90%; approximately 10% of the Pu in the briquettes remaining in the melting and pouring crucible as skull. (auth)
Date: November 7, 1952
Creator: Chandler, B. A.
Partner: UNT Libraries Government Documents Department

CENTRIFUGAL CASTING OF ALUMINUM-URANIUM ALLOYS

Description: Centrifugal-casting techniques were investigated as a method of producing hollow cylindrical extrusion billets of aluminum-35 wt.% uranium. Among the variables evaluated were melt temperature, mold and pouring-spout configurations, mold speed, and method of pouring. With the equipment employed it was found that the best castings were produced utilizing a pouring temperature of 2400 ction prod- , a heavy-walled steel cylinder rotating between 700 and 900 rpm for the mold and a bottom-pouring technique employing a retractable pouring spout. Sound, nonporous billets 26 in. long and 5 in. in diameter were produced with a yield after machining of over 75% of the original charge. The major losses occurred in the pouring spout-and-cup asserably. This loss is relatively unaffected by the casting length; and, therefore, castings of greater length than 26 in. should result in even greater recoveries. (auth)
Date: July 20, 1959
Creator: Daniel, N.E.; Foster, E.L. Jr. & Dickerson, R.F.
Partner: UNT Libraries Government Documents Department

TOROID ROTATOR FOR SMALL-SCALE DYNAMIC CORROSION STUDIES-DESIGN, FABRICATION, AND OPERATION

Description: A description of the four-toroid rotator, a relatively simple apparatus particularly applicable to the determination of the corrosive effects of flowing solutions or slurries on structural materials, is presented in detail. In this apparatus flow of a liquid medium at known velocities is induced in a circular section of pipe without the use of pumps. Included are details of mechanical design, descriptions of equipment and instrumentation, a list of fabrication costs, and a discussion of operational experience. (auth)
Date: November 15, 1956
Creator: Warner, R. M.; Moore, G. E. & Savage, H. C.
Partner: UNT Libraries Government Documents Department

Spin--wave spectrum of an amorphous ferromagnet

Description: The spin-wave spectruin of an amorphous Heisenberg ferromagnet is calculated by a diagrammatic expansion making use of a transformation due to Taylor and Wu Phys. Rev., B2: 1752 (1970). The upper limit of the spectrum is found to occur at frequencies below that of the corresponding crystalline system, while the low-frequency part of the spectrum is enhanced. Internal van Hove singularities are absent in the spin-wave spectrum of the amorphous ferromagnet. (auth)
Date: January 1, 1973
Creator: Gubernatis, J.E. & Taylor, P.L.
Partner: UNT Libraries Government Documents Department

SOME CALCULATIONS OF DIFFUSION CONTROLLED THERMAL GRADIENT MASS TRANSFER

Description: Calculations are presented of the amount of mass transfer to be expected in liquid alkali metal-Ni alloy systems for two assumed diffusion mechanisms. In one, the boundary layer is assumed saturated and the transfer rate is limited by the rate of diffusion of solute into the liquid. In the other, the mass transfer rate is assumed to be limited by the diffusion rate of a component of the solid alloy to the solid surface. It is concluded tbat a more general hypothesis is needed. (T.R.H.)
Date: July 22, 1957
Creator: Keyes, J.J. Jr.
Partner: UNT Libraries Government Documents Department

CORROSION OF CARBON STEEL IN WASTE SOLUTIONS CONTAINING MERCURY

Description: The corosion behavior of A-285, A-135, A-l06, and A-53 carbon steel was studied in multicomponent simulated waste solutions containing mercury. In the liquid phase, the carbon steels corroded at a very low rate; mercury did not increase the corrosion rate in any of the solutions tested. In the vapor phase and at the vapor-liquid interface, pitting occurred; the pitting was independent of solution compesition, and was caused mainly by the condensation of oxygenated water from the aqueous wastes. (auth)
Date: November 1, 1959
Creator: Kranzlein, P.M.
Partner: UNT Libraries Government Documents Department

Contributions to the rare earths to science and technology

Description: This is a brief summary of some areas of science where the rare earths have already played an important role and of other areas where they are almost certain to be helpful. The discovery, abundance, separation, and properties of rare earths are discussed. It is pointed out that the rare earths comprise almost one-fourth of the known metals, and their alloys a third of the possible alloys. (DLC)
Date: January 1, 1975
Creator: Spedding, F.H.
Partner: UNT Libraries Government Documents Department

INTERMETALLIC COMPOUNDS BETWEEN LITHIUM AND LEAD. V. BRILLOUIN POLYHEDRA OF THE VARIOUS PHASES

Description: Brillouin polyhedra for the intermetallic compounds of lithium and lead were determined using the zone theory. From these determinations, predictions and explanations of some electromagmetic and structural properties of the intermetallic compounds were made. (For Part IV see UCRL-4973.) (C.J.G.)
Date: November 13, 1959
Creator: Ramsey, W J & Jepson, J O
Partner: UNT Libraries Government Documents Department