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Examination of Uranium-2 w/o Zirconium Experimental Fuel Slugs Irradiated in EBR-I. Final Report-Program 6.1.11

Description: Six groups of U-2 wt% Zr fuel slugs were irradiated in the first core of the EBR-I to burnups of 0.080 to 0.189 at.% at calculated temperatures of 307 to 353 deg C. Two groups of cast specimens were found to be more dimensionally stable than four groups of wrought slugs. Of the wrought slungs, the as quenched group showed less tendency to grow than the three groups which had some annealing after quenching. Specimens at burnups of about 0.189 at.% and at 383 deg C showed the onset of swelling as… more
Date: February 1, 1962
Creator: Murphy, W. F.; Klank, A. C. & Paine, S. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Potential for energy conservaton in the metal forming industries. Progress report, July 1, 1978-August 15, 1979

Description: Reduced energy consumption and improved product attributes are realizable benefits that are achievable through the adoption of optimal metal forming techniques. With the meteoric rise in energy costs, certain segments of the metal forming industries have accelerated their efforts in switching from energy intensive manufacturing techniques, e.g., casting, to metal forming, and, furthermore, from hot forming and machined components to cold forming, notably the automotive industry. The first year … more
Date: August 1, 1979
Creator: Avitzur, B.; Beidleman, C. R. & Smackey, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study to optimize Cr-Mo steels to resist hydrogen and temper embrittlement

Description: This report gives the results of tests designed to measure the threshold stress intensity (K/sub Iscc/) in H/sub 2/S of the peak hardness zone in the HAZ of welds in 2 1/4 Cr-1 Mo plate. Difficulty was encountered because of a variability in the location of the peak hardness zone relative to the weld-base interface. There are indications that K/sub Iscc/ could be significantly below 80 ksi..sqrt..in but the absolute value could not be determined from the current tests. Details of the forging pr… more
Date: July 1, 1980
Creator: Shaw, B.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A summary of environmentally assisted crack-growth studies performed at Westinghouse Electric Corporation: Under funding from the Heavy-Section Steel Technology Program

Description: This report was prepared as an attempt to collect the information developed in the crack-growth studies at Westinghouse from 1969 to 1986. Although progress reports were issued regularly over the entire period, the program results have not previously been integrated in a single document. The effect of a pressurized-water environment in the enhancement of fatigue crack growth at low frequencies of loading was discovered by Kondo in 1971 and verified in this program shortly thereafter. To charact… more
Date: May 1, 1988
Creator: Bamford, W.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of remelting and heat treatment on 2-1/4 Cr-1Mo steel elevated temperature tensile properties

Description: Vacuum are remelting (VAR) and electroslag remelting (ESR) processes for steam generator tubesheet forgings and tubing are to be used at the CRBR. It was found that there is essentially no significant effect on the uniaxial tensile properties of 2 1/4 Cr-1Mo steel by VAR or ESR. A summary is presented of results of a study of heat treatment combined with post weld heat treatment. It was found that regardless of the primary heat treatment, the post weld heat treatment plus in-service conditions … more
Date: September 1, 1976
Creator: Offer, H.P.; Copeland, J.F. & Yuen, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Method of making multilayered titanium ceramic composites

Description: A method making a titanium ceramic composite involves forming a hot pressed powder body having a microstructure comprising at least one titanium metal or alloy layer and at least one ceramic particulate reinforced titanium metal or alloy layer and hot forging the hot pressed body follwed by hot rolling to substantially reduce a thickness dimension and substantially increase a lateral dimension thereof to form a composite plate or sheet that retains in the microstructure at least one titanium ba… more
Date: August 25, 1998
Creator: Fisher, George T., II; Hansen; Jeffrey, S.; Oden; Laurance, L.; Turner et al.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Evaluation of Irradiation Embrittlement of A508 Gr 4N and Comparison to Other Low-Alloy Steels

Description: A508 Gr 4N has improved fracture toughness because of the addition of 3% nickel, compared to typical low alloy steels which have less than 1% nickel. However, there is an expectation in much of the recent literature, based mostly on low-alloy steels with nickel below 1%, that irradiation embrittlement will increase with increasing nickel (Ni) content. In contrast, the raw irradiation test data show that ASTM A508 Grade 4N containing up to 3.7% nickel, 0.1% Cu and 0.01% P does not show enhanced … more
Date: June 17, 2002
Creator: G.L. Wire, W. J. Beggs and T.R. Leax
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enhancement of Aluminum Alloy Forgings through Rapid Billet Heating

Description: Forging is a manufacturing process in which metal is pressed, pounded or squeezed under great pressure and, often, under high strain rates into high-strength parts known as forgings. The process is typically performed hot by preheating the metal to a desired temperature before it is worked. The forging process can create parts that are stronger than those manufactured by any other metal working process. Forgings are almost always used where reliability and human safety are critical. Forgings ar… more
Date: June 1, 2006
Creator: Kervick, R.; Blue, C. A.; Kadolkar, P. B.; Ando, T.; Lu, H.; Nakazawa, K. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Microstructural Examination to Aid in Understanding Friction Bonding Fabrication Technique for Monolithic Nuclear Fuel

Description: Monolithic nuclear fuel is currently being developed for use in research reactors, and friction bonding (FB) is a technique being developed to help in this fuel’s fabrication. Since both FB and monolithic fuel are new concepts, research is needed to understand the impact of varying FB fabrication parameters on fuel plate characteristics. This thesis research provides insight into the FB process and its application to the monolithic fuel design by recognizing and understanding the microstructura… more
Date: April 1, 2008
Creator: Shropshire, Karen L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Press forging and optical properties of lithium fluoride

Description: Lithium fluoride is an important candidate material for windows on high-power, short-pulse ultraviolet and visible lasers. Lithium fluoride crystals have been press forged in one step over the temperature range 300 to 600/sup 0/c to obtain fine-grained polycrystalline material with improved mechanical properties. The deformation that can be given to a lithium fluoride crystal during forging is limited by the formation of internal cloudiness (veiling) with the deformation limit increasing with i… more
Date: January 1, 1979
Creator: Ready, J.F. & Vora, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Forging evaluaion of 304L stainless steel

Description: The objective of this project was to evaluate and characterize the effects of various forging parameters on the metallographic structure and mechanical properties of 304L stainless steel forgings. Upset and die forgings were produced by hammer and Dynapak forging with forging temperatures ranging from 760 to 1145/sup 0/C, upset reductions ranging from 20 to 60%, and annealing times ranging from 0 to 25 minutes at 843/sup 0/C. The carbide precipitation behavior observed was found to be a functio… more
Date: October 29, 1979
Creator: Packard, C. L. & Edstrom, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Segregation effects in JBK-75

Description: Chemical segregation of alloying elements, can be a severe problem in complex alloys. Many problems have been experienced with developing fabrication processes for JBK-75 and it is suggested that these difficulties may be related in part to the degree of chemical heterogeneity that exists in the alloy. Early testing and qualification of the alloy was made on relatively homogeneous samples, which came from small diameter ingots. In large size ingots used for production, it is more difficult to a… more
Date: December 21, 1979
Creator: Mataya, M. C.; Edstrom, C. M.; Krenzer, R. W. & Doyle, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of forging and heat treating practices for AMS 5737 for use at liquid helium temperatures

Description: To achieve a combination of high yield-strength (sigma y), plane-strain fracture-toughness (K/sub IC/) and resistance to galling when turned against austenitic stainless steels in highly-loaded threaded turnbuckles in the M.F.T.F.-B (Mirror Fusion Test Facility), AMS 5737 (Fe-15Cr-25Ni-1Mo-V-Ti-Al-B), a heat-treatable Fe-base superalloy that is slightly-ferromagnetic under high magnetic fields at 4K, was chosen for large (approx. 340 kg) forged turn buckles. This report describes the forging an… more
Date: August 10, 1981
Creator: Dalder, E.N.C. (Lawrence Livermore National Lab., CA) & Greenlee, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fabrication and characterization of uranium-6--niobium alloy plate with improved homogeneity

Description: Chemical inhomogeneities produced during arc melting of uranium--6 weight percent niobium alloy normally persist during fabrication of the ingot to a finished product. An investigation was directed toward producing a more homogeneous product (approx. 13.0-mm plate) by a combination of mechanical working and homogenization. Ingots were cast, forged to various reductions, homogenized under different conditions, and finally rolled to 13.0-mm-thick plate. It was concluded that increased forging red… more
Date: October 31, 1978
Creator: Snyder, W.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Slot Forge Furnace demonstration. Final report

Description: A Hague International Slot Forge Furnace was tested and installed to demonstrate a high performance energy conserving slot forge furnace in an industrial environment. This furnace was used to heat 2-1/2'' round x 31-1/8'' long bars in preparation for an upsetting operation. Each piece was heated twice, in separate operations, and upset on both ends. The Hague International Model IV Slot Forge Furnace used in the program was designed with a nominal throughput capacity of 3000… more
Date: February 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Forging of FeAl intermetallic compounds

Description: Much activity has been concentrated on the development of intermetallic compounds with the aim of improving tensile ductility, fracture toughness and high notch sensitivity in order to develop an attractive combination of properties for high and low temperature applications. This paper reports experience in processing and forging of FeAl intermetallic of B2 type. During the experiments two different temperatures were employed, and the specimens were forged after annealing in air, 10{sup {minus}… more
Date: September 1, 1994
Creator: Flores, O.; Juarez, J.; Campillo, B.; Martinez, L. & Schneibel, J. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of Next Generation Heating System for Scale Free Steel Reheating

Description: The work carried out under this project includes development and design of components, controls, and economic modeling tools that would enable the steel industry to reduce energy intensity through reduction of scale formation during the steel reheating process. Application of scale free reheating offers savings in energy used for production of steel that is lost as scale, and increase in product yield for the global steel industry. The technology can be applied to a new furnace application as w… more
Date: January 27, 2011
Creator: Thekdi, Dr. Arvind C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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2009 Photosynthesis to be held June 28 - July 3, 2009

Description: The capture of solar energy by photosynthesis has had a most profound influence on the development and sustenance of life on earth. It is the engine that has driven the proliferation of life and, as the source of both energy and oxygen, has had a major hand in shaping the forms that life has taken. Both ancient and present day photosynthetic carbon fixation is intimately tied to issues of immediate human concern, global energy and global warming. Decreasing our reliance on fossil fuels by tappi… more
Date: July 6, 2009
Creator: Bruce, Doug
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of ferromagnetic spinels for optical isolation at 10. 6. mu. m. Progress report, November 1, 1976--January 31, 1977

Description: During this quarter, measurements of the optical absorption coefficient, ..cap alpha.., of crystals of CdCr/sub 2/S/sub 4/ were measured at 10.6 ..mu..m and room temperature, and correlated with growth parameters established during the last quarter. A minimum absorption coefficient of 15.6 cm/sup -1/ was obtained. Procedures for hot forging crystals of CdCr/sub 2/S/sub 4/ were established in preparation for a study of the effect of forging on the optical absorption. Single crystals of CoCr/sub … more
Date: February 1, 1977
Creator: Teegarden, K. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Strain distribution analysis in ring upset forging and hot-rolling by photoplasticity

Description: Photoplasticity was used to determine the three-dimensional strain distribution in upset forged rings and in hot rolled bars. A 70 percent rigid Laminac mixed with 30 percent flexible Laminac polyester resin which simulates aluminium deformed at 425/sup 0/C, was used in the strain analysis. A good correlation was found between the neutral radius determined graphically from the three-dimensional strain distribution along the mid-section of the ring plotted against the relative distance r - r/sub… more
Date: June 1, 1976
Creator: Oyinlola, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The effect of hydrogen isotopes and helium on the tensile properties of 21-6-9 stainless steel

Description: High-energy-rate-forged (HERF) stainless steels are used as the materials of construction for pressure vessels designed for the containment of hydrogen and its isotopes. Hydrogen and helium, the decay product of tritium, are known to embrittle these materials. HERF stainless steels have a relatively good resistance to hydrogen-and-helium-induced embrittlement when compared to annealed stainless steels due to their high number density of dislocations, which act as traps for hydrogen and helium. … more
Date: December 31, 1990
Creator: Morgan, M. J. & Lohmeier, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of Functionally Graded Materials for Manufacturing Tools and Dies and Industrial Processing Equipment

Description: Hot forming processes such as forging, die casting and glass forming require tooling that is subjected to high temperatures during the manufacturing of components. Current tooling is adversely affected by prolonged exposure at high temperatures. Initial studies were conducted to determine the root cause of tool failures in a number of applications. Results show that tool failures vary and depend on the operating environment under which they are used. Major root cause failures include (1) therma… more
Date: March 23, 2009
Creator: Lherbier, Louis, W.; Novotnak, David, J.; Herling, Darrell, R. & Sears, James, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TRITIUM AGING EFFECTS ON THE FRACTURE TOUGHNESS PROPERTIES OF STAINLESS STEEL BASE METAL AND WELDS

Description: Tritium reservoirs are constructed from welded stainless steel forgings. While these steels are highly resistant to the embrittling effects of hydrogen isotopes and helium from tritium decay; they are not immune. Tritium embrittlement is an enhanced form of hydrogen embrittlement because of the presence of helium-3 from tritium decay which nucleates as nanometer-sized bubbles on dislocations, grain boundaries, and other microstructural defects. Steels with decay helium bubble microstructures ar… more
Date: July 30, 2009
Creator: Morgan, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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