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DETERMINATION OF CORROSION INHIBITOR CRITERIA FOR TYPE III/IIIA TANKS DURING SALT DISSOLUTION OPERATIONS INTERIM REPORT

Description: Preparation of high level waste for vitrification involves in part the dissolution of salt cake from the carbon steel storage tanks. During dissolution, a point is reached in which the corrosion inhibitors, hydroxide and nitrite, are diluted below established guidelines, and nitrate stress corrosion cracking (SCC) is possible. Because the addition of inhibitors may be counterproductive to process efficiency and waste minimization, corrosion testing was initiated to revisit and possibly revise t… more
Date: December 31, 2007
Creator: Counts, K; Bruce Wiersma, B & John Mickalonis, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiochemical Analyses for Fe, Cr, Ni, and Co Corrosion Products

Description: Abstract: Radiochemical and carrier techniques have been applied to the determination of minute amounts of Fe, Cr, Ni, and Co which appear as corrosion products of Inconel. The results are as follows: Fe, 0.061 per cent; Cr, 0.15 per cent; Ni, 0.037 per cent; and Co, .0005 per cent.
Date: September 9, 1955
Creator: Smith, R. R.; Passell, T. O. & Reeder, S. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High temperature electrochemical corrosion rate probes

Description: Corrosion occurs in the high temperature sections of energy production plants due to a number of factors: ash deposition, coal composition, thermal gradients, and low NOx conditions, among others. Electrochemical corrosion rate (ECR) probes have been shown to operate in high temperature gaseous environments that are similar to those found in fossil fuel combustors. ECR probes are rarely used in energy production plants at the present time, but if they were more fully understood, corrosion could… more
Date: September 1, 2005
Creator: Bullard, Sophie J.; Covino, Bernard S., Jr.; Holcomb, Gordon R. & Ziomek-Moroz, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Effect of Radiation on the Corrosion of Metals by Water

Description: Technical report. Long-time tests have been made on the effect of various types of radiation on the corrosion of 2S aluminum in simulated W water. In no case was any acceleration of corrosion by the radiation observed; the effect of radiation, if any, appeared to be a protective one. Deuteron irradiation did accelerate the corrosion of mild steel at low flow rates in hot water of pH 6 to 7, but no appreciable effect was observed with copper, stainless steel, or tuballoy. The general theory … more
Date: July 6, 1944
Creator: Allen, A. O. (Augustine O.); Bowman, M. C.; Goldowski, Nathalie; Larson, R. G. & Treiman, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Prediction of Corrosion of Advanced Materials and Fabricated Components

Description: The goal of this project is to provide materials engineers, chemical engineers and plant operators with a software tool that will enable them to predict localized corrosion of process equipment including fabricated components as well as base alloys. For design and revamp purposes, the software predicts the occurrence of localized corrosion as a function of environment chemistry and assists the user in selecting the optimum alloy for a given environment. For the operation of existing plants, the… more
Date: September 29, 2007
Creator: Anderko, A.; Engelhardt, G.; Lencka, M. M.; Jakab, M. A.; Tormoen, G. & Sridhar, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Atmospheric Corrosion of Aluminum Alloy 3105 in Coastal Environments: Interim Report After 15 Months Exposure

Description: In May of 1994, racks of corrosion samples were installed along the Oregon coast. The aluminum alloy 3105 samples were mounted on utility poles in Astoria, Manzanita, Lincoln City, Gold Beach, Brookings, Portland, and Albany. At each coastal location, samples were placed on four different poles at various distances from the coast (from as near as 50 feet to as far as 5 miles). The inland sites (Portland and Albany) have only one pole per site and are used as control sites. Besides the 3105 allo… more
Date: April 19, 1996
Creator: Holcomb, G. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sodium Mass Transfer - I: Test Loop Design

Description: From abstract: "This report presents the design, fabrication, assembly, operating procedures, and start-up data for six experimental test loops to examine the effect of steel exposed to sodium at temperatures as high as 1300 F."
Date: June 1962
Creator: Lockhart, R. W.; Billuris, G. & Lane, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Metal Corrosion Associated with Thermal Cycling of Inhibited and Uninhibited Propylene Glycol/Water Solution in Solar DHW Systems

Description: As part of the Solar Reliability and Materials Program at Argonne National Laboratory, metal corrosion associated with thermal cycling at 82 C circulating and 176 C stagnating temperatures of propylene glycol and ASTM corrosive water mixture (50% v/o) was investigated. Preliminary data indicate that in a mixed metal system of copper, steel, and aluminum specimens stagnating together in a glycol solution, the copper randomly pits and the pitting stops when the pit depth extends to about 1-1/2 mi… more
Date: April 1983
Creator: Cheng, Craig F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General Corrosion and Localized Corrosion of Waste Package Outer Barrier

Description: The waste package design for the License Application is a double-wall waste package underneath a protective drip shield (BSC 2004 [DIRS 168489]; BSC 2004 [DIRS 169480]). The purpose and scope of this model report is to document models for general and localized corrosion of the waste package outer barrier (WPOB) to be used in evaluating waste package performance. The WPOB is constructed of Alloy 22 (UNS N06022), a highly corrosion-resistant nickel-based alloy. The inner vessel of the waste packa… more
Date: October 1, 2004
Creator: Mon, K.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interfaces of High-Protection Performance Polyaryls-Coated Zinc Phosphated Steels

Description: To evaluate the ability of polyaryl thermoplastic coatings such as polyphenylenesulfide (PPS) and polyphenyletheretherketone (PEEK), to protect zinc phosphate (Zn{center_dot}Ph)-treated steels from corrosion in a wet, harsh environment (1.0 wt % H{sub 2}SO{sub 4}, 3.0 wt % NaCl and 96.0 wt % water at temperature from 250 to 200 C), we exposed them in autoclave to determine performance in heating-cooling cyclic fatigue tests (1 cycle = 12 hr at 200 C + 12 hr at 25 C) for up to 90 cycles. Althoug… more
Date: May 1, 1994
Creator: Sugama, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Materials Corrosion and Environmental Effects Laboratory (MCEL)

Description: A new materials corrosion laboratory has been set up, based primarily in the Materials Science Laboratory (MSL) at Los Alamos National Laboratory. The mission of the laboratory is to conduct basic and applied research in order to rapidly evaluate the durability and useful life of materials considered for use in severe environments. The laboratory serves and provides facilities for industry and universities, and researchers from the present and future DOE complex. The primary customers within th… more
Date: September 1, 1994
Creator: Butt, D. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank 241-AZ-101 prototype corrosion probe four month status report

Description: High-level nuclear wastes at the Hanford Site are stored underground in carbon steel double-shell and single-shell tanks. The installation of a prototype corrosion monitoring system into double-shell tank 241-AZ-101 was completed in August, 1996. The system monitors fluctuations in corrosion current and potential (electrochemical noise) occurring on three electrode arrays immersed in the waste liquid and in the vapor space above the waste. The system also supports the use of Tafel and linear po… more
Date: December 12, 1996
Creator: Edgemon, G. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oxidation of 2 1/4% Cr, 1% Mo Steel in Carbon Dioxide

Description: Alloy steels were studied to find types suitable for nuclear use in carbon dioxide-cooled reactors at temperatures in the range 400 - 600 degrees C. The corrosion of 2 1/4% Cr, 1% Mo steel in carbon dioxide was measured in the temperature range 460 degrees to 525 degrees C and the gas pressure range 0 to 225 p.s.i.g. The effect of gas velocity, specimen surface treatment, and water content of the gas were also determined. Adherent oxide scales of the Fe3O4 - Fe2O3 type were formed under semi-st… more
Date: 1962
Creator: Draycott, A. & Fox, B. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Microclimate Corrosion Effects in Coastal Environments

Description: The Albany Research Center is conducting atmospheric corrosion research in coastal environments to improve the performance of materials in the Nation's infrastructure. The corrosion of bare metals, and of painted, thermal-sprayed, and galvanized steels are presented for one-year exposures at sites located on bridges and utility poles along the Oregon coast. The effects of microclimates (for example distance from the ocean, high wind zones, and salt-fog prone regions) are examined in conjunction… more
Date: March 24, 1996
Creator: Holcomb, G. R.; Covino, B. S., Jr.; Bullard, S. J. & Cramer, S. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Corrosion probes for fireside monitoring in coal-fired boilers

Description: Electrochemical corrosion rate (ECR) probes were constructed and exposed along with mass loss coupons in a N2/O2/CO2/H2O environment to determine ECR probe operating characteristics. Temperatures ranged from 450 to 600 C and both ECR probes and mass loss coupons were coated with ash. Results are presented in terms of the probe response to temperature, the measured zero baseline, and the quantitative nature of the probes. The effect of Stern-Geary constant and the choice of electrochemical techn… more
Date: January 1, 2004
Creator: Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, Margaret; Eden, David A. (Intercorr International Inc.) et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Localized Corrosion of Stainless Steels and High-Nickel Alloys in Simulated Superheat Reactor Environment

Description: Abstract. A program was instituted to study and reproduce the in-reactor intergranular failures of Type-304 stainless steel fuel cladding found in superheated steam. The program was directed toward finding ways to eliminate the cause of failure or to use improved alloys that would be less susceptible to failure. A materials screening test was developed in the out-of-pile superheat facilities with 1.5 ppm chloride added as sodium chloride to the recirculating water in the presence of typical … more
Date: February 1964
Creator: Pearl, W. L.; Gaul, G. G. & Wozadlo, G. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Temperature Corrosion of Some Metals and Ceramics in Fluorinating Atmospheres

Description: Abstract: The results of this investigation leave little doubt that diffusion of the fluorinating gas along the grain boundaries of the nickel fluoride film to react at the metal-scale interface is the primary mechanism of attack upon pure nickel and its more promising alloys.
Date: September 30, 1960
Creator: Hale, C. F.; Barber, E. J.; Bernhardt, H. A. & Rapp, Karl E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effect of Fluoride on the Corrosion of Stainless Steel in the Presence of Excess Al+3 Ion

Description: Technical report detailing corrosion tests of Type 347 stainless steel for two weeks in boiling uranyl nitrate, sulfuric acid media, with and without additions of Al+3 and F-1 in a 2:1 mole ratio. The results of these tests show that although the presence of aluminum greatly reduces the deleterious effect of fluoride, the corrosion rates are still three to four times greater than when no fluoride is present. [From Abstract]
Date: March 27, 1951
Creator: Olsen, Arnold R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion of Metals in Sea Water

Description: Report issued by the Office of Saline over the corrosive properties of sea water on metals. As stated in the report, "the following paragraphs outline the major factors which influence corrosion reactions" (p. 2). This report includes tables, illustrations, and photographs.
Date: December 1960
Creator: Fink, Frederick W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fundamental Studies of Copper Bimetallic Corrosion in Ultra Large Scale Interconnect Fabrication Process

Description: In this work, copper bimetallic corrosion and inhibition in ultra large scale interconnect fabrication process is explored. Corrosion behavior of physical vapor deposited (PVD) copper on ruthenium on acidic and alkaline solutions was investigated with and without organic inhibitors. Bimetallic corrosion screening experiments were carried out to determine the corrosion rate. Potentiodynamic polarization experiments yielded information on the galvanic couples and also corrosion rates. XPS and FTI… more
Date: May 2014
Creator: Koskey, Simon Kibet
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Modeling pore corrosion in normally open gold- plated copper connectors.

Description: The goal of this study is to model the electrical response of gold plated copper electrical contacts exposed to a mixed flowing gas stream consisting of air containing 10 ppb H{sub 2}S at 30 C and a relative humidity of 70%. This environment accelerates the attack normally observed in a light industrial environment (essentially a simplified version of the Battelle Class 2 environment). Corrosion rates were quantified by measuring the corrosion site density, size distribution, and the macroscopi… more
Date: September 1, 2008
Creator: Battaile, Corbett Chandler; Moffat, Harry K.; Sun, Amy Cha-Tien; Enos, David George; Serna, Lysle M. & Sorensen, Neil Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers

Description: There is a concern that environmental-contamination caused corrosion may negatively affect Information Technology (IT) equipment reliability. Nineteen data centers in the United States and two in India were evaluated using Corrosion Classification Coupons (CCC) to assess environmental air quality as it may relate IT equipment reliability. The data centers were of two basic types: closed and outside-air cooled. A closed data center provides cool air to the IT equipment using air conditioning in … more
Date: July 17, 2011
Creator: Coles, Henry C.; Han, Taewon; Price, Phillip N.; Gadgil, Ashok J. & Tschudi, William F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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