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Metals and Ceramics Division. Annual progress report, ending June 30, 1980

Description: Research is reported concerning: (1) engineering materials, including materials compatibility, mechanical properties, nondestructive testing, pressure vessel technology, and welding and brazing; (2) fuels and processes consisting of ceramic technology, fuel cycle technology, fuels evaluation, fuel fabrication and metals processing; and (3) materials science which includes, ceramic studies, physical metallurgy properties, radiation effects and microstructural analysis, metastable and superconduc… more
Date: September 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Los Alamos upgrade in metallographic capabilities

Description: The Los Alamos Wing 9 Hot Cell Facility is in the process of upgrading their metallographic sample preparation and examination capability. The present capability to grind, polish and etch samples from reactor fuels and materials has been in operation for 18 years. Macro photography and alpha and beta-gamma autoradiography are an important part of this capability. Some of the fast breeder reactor experiments have contained sodium as a coolant. Therefore, the capability to distill sodium from som… more
Date: January 1, 1985
Creator: Ledbetter, J. M.; Dowler, K. E. & Cook, J. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Some recent observations on the radiation behavior of uranium silicide dispersion fuel

Description: Addition of B{sub 4}C burnable poison results in higher plate swelling in both U{sub 3}Si{sub 2} and U{sub 3}Si-Al dispersion fuel plates and also decreases the blister threshold temperature of these plates. Prolonged annealing of U{sub 3}Si{sub 2}-Al fuel plates produced no blister after 696 hours at 400{degrees}C. Blister formation started between 257 hours and 327 hours at 425{degrees}C and between 115 hours and 210 hours at 450{degrees}C. Operation with breached cladding resulted in pillowi… more
Date: January 1, 1988
Creator: Hofman, G.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Metallographic examinations of Type 304 stainless steel (heat 9T2796) tested in high-temperature uniaxial and multiaxial experiments

Description: The results obtained from a number of metallographic examinations of Type 304 stainless steel specimens were compiled. Samples were obtained from uniaxial and multiaxial tests covering a very broad span of temperatures and times. Special emphasis was on the identification of failure modes, cracking patterns, grain distortion, and grain-boundary microstructures. Uniaxial specimens exhibited the following sequence of failure modes with increasing temperature and time: ductile plastic tearing, duc… more
Date: March 1, 1984
Creator: Swindeman, R.W. & Houck, C.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AR and TD Fossil Energy Materials Program. Quarterly progress report for the period ending December 31, 1981

Description: The ORNL Fossil Energy Materials Program Office compiles and issues this combined quarterly progress report from camera-ready copies submitted by each of the participating subcontractor organizations. This report of activities on the program is organized in accordance with a work breakdown structure defined in the AR and TD Fossil Energy Materials Program Plan for FY 1982-1986 in which projects are organized according to fossil energy technologies. This report is divided into parts and chapters… more
Date: April 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of cracking in feedwater piping adjacent to the steam generators in Nine Pressurized Water Reactor Plants

Description: Cracking in ASTM A106-B and A106-C feedwater piping was detected near the inlet to the steam generators in a number of pressurized water reactor plants. We received sections with cracks from nine of the plants with the objective of identifying the cracking mechanism and assessing various factors that might contribute to this cracking. Variations were observed in piping surface irregularities, corrosion-product, pit, and crack morphology, surface elmental and crystal structure analyses, and stee… more
Date: June 25, 1980
Creator: Goldberg, A.; Streit, R. D. & Scott, R. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Strontium heat source development program. Advanced Nuclear Systems and Projects Division, quarterly report, January-March 1980

Description: Sectioning of the capsules from the 30,000-h tests with /sup 90/SrF/sub 2/ has been completed at Oak Ridge National Laboratory, and examination of the test specimens is under way. Metallographic examination of specimens taken from the WESF /sup 90/SrF/sub 2/ capsule that was held at about 800/sup 0/C for three years has been completed. Attack of the Hastelloy C-276 was not significantly greater than that observed in the WESF capsule held at 800/sup 0/C for 5000 hours. Hydrostatic pressure testi… more
Date: April 1, 1980
Creator: Fullam, H. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Materials research for the clean utilization of coal. Quarterly progress report, January-March 1980

Description: An interpretive report, summarizing erosive wear failures in coal conversion pilot plants was completed, reviewed by DOE and submitted for NBS editorial review. The Failure Information Center transmitted 198 abstracts and 8 hard-copy reports to industry. Compressive yield measurement of MHD refractories at 1400/sup 0/C, 1500/sup 0/C, and 1580/sup 0/C are presented for loading at 0.0002 in/min. The electrical conductivity of YCrO/sub 3/ doped with five percent Ca has been measured in a highly re… more
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Intergranular Crack Propagation Rates in Sensitized Type 304 Stainless Steel in an Oxygenated Water Environment

Description: Intergranular stress-corrosion crack (IGSCC) propagation rates were measured in three heats of sensitized Type 304 stainless steel (SS) as a function of sensitization in an environment of high-purity water with 8 ppm oxygen, using a fracture mechanics approach. Specimens were sensitized using controlled furnace heat treatments and the degree of sensitization was measured by the electrochemical potentiokinetic reactivation (EPR) method. Active loading tests were performed on standard specimens … more
Date: December 1, 1983
Creator: Park, J. Y. & Shack, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Factors affecting the failure of copper connectors brazed to copper bus bar segments on a 615-MVA hydroelectric generator at Grand Coulee Dam

Description: On March 21, 1986, the United States Bureau of Reclamation experienced a ground fault in the main parallel ring assembly of Unit G19 - a 615-MVA hydroelectric generator - at Grand Coulee Dam, Washington. Inspection of the unit revealed that the ground fault had been induced by fracture of one or more of the copper connectors used to join adjacent segments of one of the bus bars in the north half of the assembly. Various experimental techniques were used to detect and determine the presence of c… more
Date: January 1, 1988
Creator: Atteridge, D. G.; Klein, R. F.; Layne, R.; Anderson, W. E. & Correy, T. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Consumable arc-melting, extruding, and rolling process for iridium sheet

Description: An iridium alloy has been used as cladding for the /sup 238/PuO/sub 2/ fuel in radioisotope thermoelectric generators (RTGs) for recent interplanetary spacecraft such as Voyagers 1 and 2 and will be used for the Galileo and Ulysses spacecraft. The iridium alloy sheet for the fuel cladding used on these missions was fabricated by hot and cold rolling of arc-melted and drop-cast 0.5-kg ingots. Upon completion of production for these spacecraft, an opportunity was taken to conduct process improvem… more
Date: June 1, 1986
Creator: Heestand, R. L.; Copeland, G. L. & Martin, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Metallographic examination of surveillance coupons from the Wilsonville, Alabama, Solvent Refined Coal Pilot Plant, 1977-1978

Description: Commercialization of the solvent refined coal (SRC) process requires corrosion-resistant yet economical materials of construction. A corrosion surveillance program was initiated at the Wilsonville, Alabama, SRC pilot plant to expose racks of welded specimens of engineering alloys to the various process conditions in major plant vessels. To observe the long-term cumulative exposure effects, sections were taken from the specimens after six months. The coupons were replaced in the vessels for anot… more
Date: July 1, 1980
Creator: Baylor, V. B.; King, R. T.; Leslie, B. C.; Crouse, R. S.; Patko, A. J. & Taber, K. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Irradiation behavior of the CNEA's experimental uranium silicide dispersion fuel plates

Description: Since 1978 the CNEA ECBE project has been involved in the development of dispersion fuel plates with four types of fuel materials -- UAl{sub x}, U{sub 3}O{sub 8}, U{sub 3}Si, and U{sub 3}Si{sub 2} -- to be used in low enriched (LEU < 20% {sup 235}U) fuel elements for research reactors. Miniplates with these fuel materials were manufactured at CNEA and were irradiated in the ORR in three series of irradiations as part of the RERTR miniplate irradiation program. The first irradiation contained U{… more
Date: January 1, 1988
Creator: Hofman, G.L.; Marajofsky, A.; Kohut, C. (Argonne National Lab., IL (USA) & Comision Nacional de Energia Atomica, Buenos Aires (Argentina))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Survey of digital imaging technology and applications at the Savannah River Site

Description: An introduction to methods of digital image analysis is presented. Modern commercially available digital image analysis systems are described, along with applications that may be useful to programs at the Savannah River Site (SRS). Systems to aid inspection of tritium reservoir fill stems and a system to enhance inspection of radiographs of pinch weld closures of tritium reservoirs have already been developed at SRS. Modern digital analysis systems based on personal computers have been and are … more
Date: October 9, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced research and technology development fossil energy materials program. Quarterly progress report for the period ending September 30, 1981

Description: This is the fourth combined quarterly progress report for those projects that are part of the Advanced Research and Technology Development Fossil Energy Materials Program. The objective is to conduct a program of research and development on materials for fossil energy applications with a focus on the longer-term and generic needs of the various fossil fuel technologies. The program includes research aimed toward a better understanding of materials behavior in fossil energy environments and the … more
Date: December 1, 1981
Creator: Bradley, R.A. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fracture behavior of zircaloy spent-fuel cladding

Description: The Zircaloy cladding of water reactor fuel rods is susceptible to local breach-type failure, commonly known as pellet-cladding interaction (PCI) failure, during operational and off-normal power transients after the fuel has achieved a sufficiently high burnup. An optimization of power ramp procedures or fuel rod fabrication to minimize the cladding failure would result in a significant decrease in radiation exposure of plant personnel due to background and airborne radioactivity as well as an … more
Date: October 1, 1983
Creator: Chung, H.M.; Yaggee, F.L. & Kassner, T.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High-temperature compatibility study of iridium (DOP-26 alloy) with graphite and plutonia

Description: This report outlines the materials compatibility tests conducted on DOP-26 iridium alloy and carbon. The carbon used was in the form of woven graphite as present in the impact shell used to encase plutonia in nuclear heat sources. In addition, compatibility tests of the DOP-26 alloy with plutonia are described. The reactivity observed in both systems is discussed. 4 refs., 6 figs.
Date: December 1, 1987
Creator: Axler, K.M. & Eash, D.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polyimide and polyamide-imide in a tritium atmosphere

Description: Five different commercial polyamide-imide and polyimide specimens were kept in a tritium atmosphere (96.9 mol %, 101 kPa, initial fill conditions) for three months. Selected physical and mechanical properties of the five plastics were examined. Mass spectrometric data showed the growth of protium and HT impurity in the tritium gas.
Date: January 1, 1981
Creator: Wylie, K. F.; Hockett, J. E. & Buxton, T. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The right tool for machining beryllium

Description: Machine tools from the C-2, C-4, and C-7 designation were examined in this study. Overall twelve different machine tools from these grades were evaluated. Each machine tool was used to machine beryllium and then examined to determine wear characteristics. They were then polished and etched to reveal microstructure. The microstructure was examined on a scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS).
Date: January 1, 1987
Creator: Johns, W.L. & Jackson, M.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Metallography of maraging 350 steel

Description: A technique for etching maraging 350 steel with Glyceregia is described. Surface activation procedures are integral to this technique. Microstructural features revealed by this technique are compared with those obtained with Kalling's reagent, Fry's reagent, and 5% Nital, three etchants commonly used to reveal microstructures of maraging steels. Features which may be simultaneously revealed using Glyceregia include prior austenite grain boundaries, martensitic structure, precipitates, titanium … more
Date: January 1, 1987
Creator: Hutson, S. M. & Merten, C. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Examination of Zircaloy-Clad Spent Fuel After Extended Pool Storage

Description: This report presents the results from metallurgical examinations of Zircaloy-clad fuel rods from two bundles (0551 and 0074) of Shippingport PWR Core 1 blanket fuel after extended water storage. Both bundles were exposed to water in the reactor from late 1957 until discharge. The estimated average burnups were 346 GJ/kgU (4000 MWd/MTU) for bundle 0551 and 1550 GJ/kgU (18,000 MWd/MTU) for bundle 0074. Fuel rods from bundle 0551 were stored in deionized water for nearly 21 yr prior to examination… more
Date: September 1, 1981
Creator: Bradley, E. R.; Bailey, W. J.; Johnson, A. B., (Jr.) & Lowry, L. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Report covering examination of parts from downhole steam generators. [Combustor head and sleeve parts]

Description: Combustor head and sleeve parts were examined by using optical and scanning electron metallography after use in oxygen/diesel and air/diesel downhole steam generators. The degradation of the different alloy components is described in terms of reactions with oxygen, sulfur and carbon in the presence of cyclic stresses, all generated by the combustion process. Recommendations are presented for component materials (alloys and coatings) to extend component lives in the downhole steam generators. 9 … more
Date: August 1, 1983
Creator: Pettit, F. S. & Meier, G. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polyimide and polyamide-imide in a tritium atmosphere

Description: Five different commercial polyamide-imide and polyimide specimens were kept in a tritium atmosphere (96.9 mol %, 101 kPa, initial fill conditions) for three months. Selected physical and mechanical properties of the five plastics were examined. Mass spectrometric data showed the growth of protium and HT impurity in the tritium gas.
Date: January 1, 1981
Creator: Wylie, K. F.; Hockett, J. E. & Buxton, T. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Correlation of waterside corrosion and cladding microstructure in high-burnup fuel and gadolinia rods

Description: Waterside corrosion of the Zircaloy cladding has been examined in high-burnup fuel rods from several BWRs and PWRs, as well as in 3 wt % gadolinia burnable poison rods obtained from a BWR. The corrosion behavior of the high-burnup rods was then correlated with results from a microstructural characterization of the cladding by optical, scanning-electron, and transmission-electron microscopy (OM, SEM, and TEM). OM and SEM examination of the BWR fuel cladding showed both uniform and nodular oxide … more
Date: September 1, 1989
Creator: Chung, H.M. (Argonne National Lab., IL (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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