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Electroless nickel and ion-plated protective coatings for silvered glass mirrors

Description: A preliminary examination of two methods of protecting second surface silvered glass mirrors from environmental degradation is presented. One method employed silver mirrors overcoated with Al, Ni, 304 stainless steel, Cr, or an Al/Cu alloy prepared by ion-plating. The other method used conventional wet process silver mirrors protected with a thin electroless nickel coating. No attempt was made to optimize the coatings for either method. These experimental mirrors were compared with conventional… more
Date: April 1, 1982
Creator: Lind, M. A.; Chaudiere, D. A.; Dake, L. S. & Stewart, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ambient temperature stress-corrosion cracking of sensitized stainless steels. [PWR]

Description: Stress-corrosion cracking of sensitized Type 304 steel in low temperature borated water has been observed. The probable role of low levels of chloride ions or sulfur-containing ions is described, including the relationship of the phenomenon to polythionic acid cracking. The mechanism of the sulfur-induced cracking and its usefulness as a test for sensitization are outlined.
Date: January 1, 1982
Creator: Sieradzki, K.; Isaacs, H. S. & Newman, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Localized corrosion in materials for geothermal power. Final report

Description: The influence of 16 different geothermally related environments on a number of potentially useful steels was examined for both general and localized corrosion and at ambient and 150/sup 0/C. Variation in chloride concentration of 1 to 20% generally demonstrated only minor aggressiveness in acidified solutions. In general, the presence of H/sub 2/S raised the corrosion rate. However, very low concentrations (10 ppM) indicated higher rates than in saturated brines. This is rationalized on the bas… more
Date: April 1, 1982
Creator: Troiano, A.R. & Hehemann, R.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fate of corrosion products released from stainless steel in marine sediments and seawater. Part 4: Hatteras abyssal red clay

Description: A study in which neutron-activated 347 stainless steel was exposed to surficial sediment from a site in the Hatteras Abyssal Plain of the Northwest Atlantic Ocean is described. This sediment consists of approx. 20% CaCO/sub 3/, which could lead to the formation of calcareous scale on the metal surface and reduce the corrosion rate. The distribution of indigenous metals among different chemical fractions shows that extractable Cr, Mn, Fe, Co, and Zn were associated with amorphous Mn and Fe oxide… more
Date: July 1, 1982
Creator: Schmidt, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flow lines and microscopic elemental inhomogeneities in austenitic stainless steels

Description: Flow lines in mechanically formed austenitic stainless steels are known to influence fracture behavior. Enhancement of flow lines by chemical etching is evidence of elemental inhomogeneity. This paper presents the results of electron microprobe analyses to determine the nature of flow lines in three austenitic stainless steels: 21Cr-6Ni-9Mn, 304L, and 19Ni-18Cr.
Date: January 1, 1982
Creator: Mosley, Jr, W C
Item Type: Refine your search to only Article
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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Review of time-dependent fatigue behavior and life prediction for 2 1/4 Cr-1 Mo steel. [LMFBR]

Description: Available data on creep-fatigue life and fracture behavior of 2 1/4 Cr-1 Mo steel are reviewed. Whereas creep-fatigue interaction is important for Type 304 stainless steel, oxidation effects appear to dominate the time-dependent fatigue behavior of 2 1/4 Cr-1 Mo steel. Four of the currently available predictive methods - the Linear Damage Rule, Frequency Separation Equation, Strain Range Partitioning Equation, and Damage Rate Equation - are evaluated for their predictive capability. Variations … more
Date: January 1, 1982
Creator: Booker, M. K. & Majumdar, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Downhole steam generation: material studies

Description: One enhanced oil recovery technique for extracting heavy crude from deep reservoirs by steam at the bottom of an injection well. Development of a downhole steam generator that will produce steam and inject it into formations at depths greater than 2500 feet is one objective of a Department of Energy/Sandia National Laboratories development effort - Project DEEP STEAM. Extensive material studies have been performed in support of Project DEEP STEAM; current efforts are devoted primarily to the se… more
Date: January 1, 1982
Creator: Beauchamp, E.K.; Weirick, L.J. & Muir, J.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mass flow measurement of solids/gas stream using radiometric techniques

Description: A mass flowmeter utilizing radiometric techniques has been designed and built for measuring flows in two phase gas/solids feed streams in coal gasification processes. The instrument combines a radiometric density measurement and a time cross-correlation velocity determination into a non-intrusive gas/solids mass flowmeter. Accuracies of 5 to 10% are anticipated for flow with 10% solids fraction and velocities of one to five meters per second. The theory, the relevant radiometric cross-sectional… more
Date: January 1, 1982
Creator: Linn, J.K. & Sample, D.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fate of corrosion products released from stainless steel in marine sediments and seawater. Part 1. Northeast Pacific pelagic red clay

Description: To provide information useful for determining the biogeochemical cycling of corrosion products in the benthic boundary layer of the deep ocean, neutron-activated stainless steel was exposed to seawater and to Northeast Pacific red clay under aerobic and non-oxygenated conditions. This report describes the trace metal geochemistry of the sediment and the chemical speciation of the corrosion products. The sediments generally consisted of reddish-brown clay at the surface grading to a dark-brown t… more
Date: March 1, 1982
Creator: Schmidt, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biological fate of cobalt-60 released during the corrosion of neutron-activated stanless steel in seawater

Description: Passing seawater over radioactive Type 347 stainless steel in a sediment/seawater laboratory system and exposing marine animals to this environment provided information on the bioaccumulation of /sup 60/Co from radioactive structural material. Exposure of marine organisms to radioactive corrosion products and directly to radioactive stainless steel in seawater simulated some of the possible conditions which could arise from the deposition of radioactive stainless steel on the ocean floor. Detec… more
Date: March 1, 1982
Creator: Young, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Long-term creep testing of 2 1/4 Cr-1 Mo steel in HTGR helium

Description: Long-term creep tests have been conducted on three heats of 2 1/4 Cr-1 Mo ferritic steel, a candidate alloy for a number of applications in gas-cooled reactors. These tests, run at temperatures from 482 to 649/sup 0/C, have reached times of 40,000 h and greater. Essentially no effect of environment, either air or simulated gas-cooled reactor helium, was seen at temperatures up to about 600/sup 0/C. At the highest test temperature the creep behavior of the steel was degraded both by oxidation in… more
Date: January 1, 1982
Creator: Rittenhouse, P. L. & McCoy, H. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Compatibility of stainless steel with Pb-17 AT. % Li

Description: The corrosion of type 316 stainless steel and Sandvik HT9 by static Pb-17 at. % Li between 300 and 500/sup 0/C was studied. The resulting weight losses were significantly greater than those of these steels in lithium. The corrosive attack was very uniform, and the room-temperature tensile properties of the steels were unaffected by the exposure. The application of molten Pb-17 at. % Li as a tritium-breeding fluid in conjunction with ferrous alloys in a fusion reactor may be limited to 400/sup 0… more
Date: January 1, 1982
Creator: Tortorelli, P. F. & DeVan, J. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Substitution of modified 9 Cr-1 Mo steel for austentic stainless steels

Description: This report describes the current program to develop a high-strength ferritic-martensitic steel. The alloy is essentially Fe-9% Cr-1% Mo with small additions of V and Nb and is known as modifed 9 Cr-1 Mo steel. Its elevated-temperature properties and design allowable stresses match those of type 304 stainless steel for temperatures up to 600/sup 0/C and exceed those of other ferritic steels by factors of 2 to 3. The improved strength of this alloy permits its use in place of stainless steels fo… more
Date: April 1, 1982
Creator: Sikka, V. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanical properties of 800-MeV proton-irradiated metals

Description: Accelerator beam line components and spallation neutron targets operate in an irradiation environment where changes in mechanical properties can adversely affect component integrity. The present work presents a preliminary study of the effects of low fluences (10/sup 19/ to 10/sup 20/ p/cm/sup 2/) of 800-MeV protons on the yield strength, tensile strength, and ductility of samples of 304 stainless steel, Alloy 718, molybdenum, and tantalum. Tensile samples (0.75 or 1.6 mm thick) were directly w… more
Date: January 1, 1982
Creator: Brown, R. D. & Cost, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Estimated neutron-activation data for TFTR. Part II. Biological dose rate from sample-materials activation

Description: The neutron induced material activation dose rate data are summarized for the TFTR operation. This report marks the completion of the second phase of the systematic study of the activation problem on the TFTR. The estimations of the neutron induced activation dose rates were made for spherical and slab objects, based on a point kernel method, for a wide range of materials. The dose rates as a function of cooling time for standard samples are presented for a number of typical neutron spectrum ex… more
Date: June 1, 1982
Creator: Ku, L. & Kolibal, J.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanical properties of structural materials for FBR sodium application. Semi-annual progress report for period ending January 31, 1982

Description: Metallographic evaluations of the CRBR core barrel forging material, creep rupture tested at 538/sup 0/C in air, were performed. The majority of the specimens had a knobby appearance on the surface of the gage section. The stress-rupture life for sodium pre-exposed Type 316 stainless steel performed at 538/sup 0/C in flowing sodium is increased by a factor of at least three at a stress of 275.8 MPa (40.0 ksi) when compared to tests in sodium for as-received material (mill annealed) at the same … more
Date: January 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Multiaxial fatigue criteria for AISI 304 and 2-1/4 Cr-1 Mo steel at 538/sup 0/C with applications to strain-range partitioning and linear summation of creep and fatigue damage

Description: An improved multiaxial fatigue failure criterion was developed based on the results of combined axial-torsional strain cycling tests of AISI 304 and 2-1/4 Cr-1 Mo steel conducted at 538/sup 0/C (1000/sup 0/F). The formulation of this criterion involves the shear and normal components of inelastic strain range on the planes of maximum inelastic shear strain range. Optimum values of certain parameters contained in the formulation were obtained for each material by the method of least squares. The… more
Date: January 1, 1982
Creator: Blass, J.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Irradiation and compatibility testing of Li/sub 2/O materials at EBR-II

Description: A study was made of the neutron-irradiation behavior of /sup 6/Li-enriched Li/sub 2/O material in EBR-II. In addition, a stress corrosion study was performed ex-reactor to test compatibility of Li/sub 2/O materials with a variety of stainless steels. Results of the irradiation testing showed that tritium and helium retention in the Li/sub 2/O (approx. 89% dense) lessened with neutron exposure. Helium tritium retention appeared to approach steady-state after approx. 1% /sup 6/Li burnup. The effe… more
Date: December 1, 1982
Creator: Porter, D. L.; Krsul, J. R.; Laug, M. T.; Tetenbaum, M. & Walters, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study of the Effects of Austenitizing and Tempering Heat Treatments on the Alloy HT-9

Description: This paper investigates the potential use of the ferritic alloy Sandvik HT-9 (12 Cr - 1 Mo) as an alternative to stainless steels used in high-neutron-fluence environments. The neutron radiation influences embrittlement where the impact-energy versus test-temperature curve is seen displaced to the right. As a result, commercially effective solutioning and tempering processes are needed to suppress this effect in the pre-irradiated condition. The effects of austenitizing treatments on the impact… more
Date: January 1, 1982
Creator: Redmon, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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HTGR structural-materials efforts in the US

Description: The status of ongoing structural materials programs being conducted in the US to support development and deployment of the high-temperature gas-cooled reactor (HTGR) is described. While the total US program includes work in support of all variants of this reactor system, the emphasis of this paper is on the work aimed at support of the steam cycle/cogeneration (SC/C) version of the HTGR. Work described includes activities to develop design and performance prediction data on metals, ceramics, an… more
Date: July 1, 1982
Creator: Rittenhouse, P.L. & Roberts, D.I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effect of helium preinjection and prior thermomechanical treatment on the microstructure of Type 316 SS

Description: Samples of 316 SS were preinjected with 15 appM helium either hot (650/sup 0/C) or cold (room temperature) and irradiated with 3 MeV Ni/sup +/ ions to a dose level of 25 dpa at 625/sup 0/C in order to test the validity of helium preinjection as a means of simulation of transmutant helium production. Results for preinjected and single-ion irradiated samples were compared to samples irradiated with 3 MeV Ni/sup +/ and simultaneously injected with helium at a rate of 15 appM He/dpa (dual-ion irrad… more
Date: October 1, 1982
Creator: Kohyama, A.; Ayrault, G.; Turner, A.P.L. & Igata, N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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