... Title : Accelerated Corrosion Analysis of Aluminum Armor Alloy 2519 With Nonchromate Conversion Coatings for DOD Applications. ...
DTIC Science & Technology
... strength Stress analysis Accelerated durability testing Radiopacity Deliverability Bond strength / joint integrity Coating integrity Corrosion resistance ...
Center for Biologics Evaluation and Research (CBER)
... Pagination or Media Count : 37. Abstract : This study examines the effectiveness of six nonchromate conversion coatings on aluminum alloys 5083 ...
The objective of this study was to ascertain the condition of braze joints and cooling water hardware from an accelerator section after prolonged use. Metallographic analysis was used to examine critical sites on an accelerator section that had been in us...
National Technical Information Service (NTIS)
... Title : Use of Accelerated Intergranular Corrosion Tests and Pitting Corrosion Tests to Detect Sensitization and Susceptibility to Intergranular Stress ...
... Title : The Correlation Between Accelerated Laboratory Corrosion Tests and Atmospheric Corrosion Station Tests on Steels,. ...
The use of multiple-component systems in orthopedic surgery gives the surgeon increased flexibility in choosing the optimal implant, but introduces the possibility of interfacial corrosion. Such corrosion could limit the longevity of prostheses due either to tissue reactions to corrosion products, or to device failure. The incidence ...
PubMed
... Salt-fall at the Fort Sherman heat exchanger test site was relatively heavy at 208 lb/ ... The heat exchanger test site thus represents an accelerated ...
... Title : AE ANALYSIS DURING CORROSION, STRESS CORROSION CRACKING AND CORROSION FATIGUE PROCESSES. Corporate Author : ...
Pitting corrosion experiments were executed to characterize the dynamics. of accelerated corrosion for the combination of 2024-T3 aluminum and a 3.5% NaCl solution at room temperature. Platinum was used as a counter electrode and a silver-silver chloride electrode was used as a reference. A corrosion protocol was ...
NASA Astrophysics Data System (ADS)
... Title : Features of an Accelerated Chemical Method of Determination of the Intergranular Corrosion Resistance of Corrosion-Resistant Steels,. ...
... Accession Number : ADD410804. Title : Accelerated corrosion testing of glass- reinforced polyesters. Corporate Author : ...
Test procedures for accelerated stress-corrosion testing of high-strength aluminum alloys faster and
NASA Technical Reports Server (NTRS)
... ACCELERATED CORROSION TESTING OF GRAPHITE/EPOXY COMPOSITES AND ALUMINUM ALLOY MECHANICALLY-FASTENED JOINTS ...
The Corrosion Technology Laboratory at Kennedy Space Center has the facilities, equipment, and experience to conduct indoor accelerated laboratory testing. ...
NASA Website
... Accession Number : ADD129433. Title : Accelerated Atmospheric-Corrosion Testing,. Corporate Author : SYSTEMS RESEARCH ...
Current study is aiming at making an in-depth research about the characteristics of the acoustic emission (AE) signals produced during the steel corrosion of reinforced concrete. Basing on the simplified waveform parameter analysis, a more effective method-frequency spectrum analysis for each waveform in time-domain is carried out to ...
... AND TEMPERATURES REQUIRED FOR THE PROCESSING OF COAL LEAD TO ACCELERATED CORROSION OF GASIFIER COMPONENTS BY ...
... Abstract : The program objective was to develop an accelerated laboratory corrosion test capable of simulating the severe corrosive effects of an ...
... Title : Preparation of an Accelerated Protection Test Method for Lubricants, Corrosion Preventives and Hydraulic Fluids. ...
During recent decades, accelerated corrosion test equipment and methods simulating atmospheric corrosion have been developed to incorporate the many factors involved in complex accelerated corrosion. A new accelerated corrosion tester was developed to ...
Energy Citations Database
Internal corrosion of pipelines carrying lift gas for and production from gas-lifted wells is a widespread phenomenon and can be quite severe. Production of water from water-drive reservoirs combined with gas and CO{sub 2} is the major cause of corrosion. CO{sub 2} dissolved in saltwater forms an acidic brine solution that attacks steel pipes. This ...
... Components Under Conditions of Atmospheric Corrosion Presented at CORROSION/88, ... Page 1 Conditions for Atmospheric Corrosion ..... ...
... 3] high solid epoxy primer with MIL-PRF-85285 [4] high solid polyurethane topcoat (USAF/US Navy), � MIL-PRF-85582c1 [5] waterborne epoxy with ...
Battelle conducted an independent review and analysis of the accelerated test procedures and test data obtained by Exide in the 3-year Phase I program to develop advanced lead-acid batteries for utility load leveling. Of special importance is the extensive data obtained in deep-discharge cycling tests on 60 cells at elevated temperatures over a 2-1/2 year ...
Flow-accelerated corrosion (FAC) of large areas of carbon steel in various circuits of CANDU plants generates significant quantities of corrosion products. As well, the relatively rapid corrosion rate can lead to operating difficulties with some component...
... relative humidity appears to be linear through the origin. ... M---cu.ry on Aluminum Corrosion, Hanford Atomic Products Operations, Richland ...
... to the oxide ion concentration of the melt. (Author). Descriptors : (*NICKEL ALLOYS, *CORROSION), (*SULFATES, CORROSION), (*VANADIUM ...
... Descriptors : *ANTIFREEZES, *COOLANTS, *CORROSION INHIBITION, *BENCH TESTS, ELECTRODES, LIFE EXPECTANCY(SERVICE LIFE ...
... Accession Number : ADD140944. Title : Corrosion Behavior of Aluminum in the Presence of Accelerating Metal Cations and Inhibition,. ...
... CORROSION INHIBITION, ALUMINUM ALLOYS), ELECTROCHEMISTRY, VOLTAGE, ACCELERATED TESTING, MAGNESIUM ALLOYS, ZINC ...
... to undergo stress-corrosion cracking. ... cathodic polarization up to the appearance of cracking. ... NaCl solution regardless of the probable mechanism. ...
... This search queries the DTIC Online Public Web ... MANAGEMENT, SYMPOSIA, EXPERT SYSTEMS, COMPUTERIZED SIMULATION, CORROSION. ...
The objective of this study is to investigate the composition of corrosion products and the metal surface within a crevice after localized corrosion. The analysis provides insight into the propagation, stifling and arrest processes for crevice corrosion and is part of a program to analyze the evolution of localized ...
A necessary condition for crevice corrosion is that a crevice former create a sufficiently tight, restricted geometry on the metal surface to support the development of critical crevice chemistry. Crevice corrosion is affected by the crevice geometry (tightness) and the properties of the crevice former. The objective of this study is to determine the ...
DOE Information Bridge
... UNC A3iFiEO Page 4. HIGH TEMPERATURE ACCELERATED STRESS- CORROSION OF NICKEL AND MONEL IN SULFIDE ATMOSPHERES (U) ...
... Accession Number : ADA951396. Title : High Temperature Accelerated Stress-Corrosion of Nickel and Monel in Sulfide Atmospheres. ...
... Title : Accelerated Tests of Relative Atmospheric-Corrosion Resistance of Low-Alloy Atmosphere-Resistant Steels,. Corporate Author : ...
... Accession Number : ADA053083. Title : Accelerated Corrosion of Copper-Nickel Piping. ... Report Date : DEC 1977. Pagination or Media Count : ...
... Title : Accelerated Corrosion of Adhesively Bonded 7075 Aluminum Using Wedge Crack Specimens. Descriptive Note : Final rept. Jan 76-Jun 77,. ...
Page 1. Accelerated Corrosion Results for Zinc/Nickel-Plated Automotive Parts Posttreated With ... Automotive Parts Posttreated With ...
... Title : Accelerated Corrosion Results for Zinc/Nickel-Plated Automotive Parts Posttreated With Trivalent Chromate Rinse. ...
... Title : A Study of Hydrogen Sulfide Accelerated Stress-Corrosion Cracking in D6ac Steel. Descriptive Note : Memorandum rept.,. ...
A pump channel, which failed by cracking after approximately 950 hours service in an isothcrmal loop containing lead -bismuth eutectic, was examined by mctallography, radiography, and analysis for causes of failure. No metallurgical defects were found in the tube, but there was evidence of corrosion by the liquid metal. It is concluded that the ...
Because of the chaotic nature of the corrosion process and the complexity of the electrochemical noise signals that are generated, there is no generally accepted method of measuring and interpreting these signals that allows the consistent detection and identification of sustained localized pitting (SLP) as compared to general corrosion. We have reexamined ...
Development of conceptual and mathematical models describing the corrosion of steel in prestressed concrete is outlined. The application of the principles of stress corrosion and general corrosion to understanding the mechanisms involved in corrosion of s...
... defects: accelerated general corrosion to depths of about 40 microns--ascribed to acid sulfate attack; and intergranular attack (IGA)/stress corrosion ...
This book contains 32 papers on accelerated corrosion tests, including immersion, simulated atmosphere, electrochemical, and environmentally aggressive tests. Includes an appendix of 14 ASTM standard corrosion tests, practices, and definitions.
... Accession Number : ADA204964. Title : Corrosion of High-Density Sintered Tungsten Alloys. Part 2. Accelerated Corrosion Testing. ...
... of chromium and arsenic; both are known as corrosion inhibitors. While accelerated tests exist for estimating the corrosiveness of new wood preservatives currently, there is no way to relate the results of...
NBII National Biological Information Infrastructure
MICROBIOLOGICALLY INFLUENCED CORROSION (MIC) designates corrosion due to the presence and activities of microorganisms. Microorganisms can accelerate rates of partial reactions in corrosion processes and/or shift the mechanism for corrosion processes and/...
Types of general and localized corrosion of aluminum are described, and factors that initiate or accelerate corrosion are discussed. Recommendations are made for controlling corrosion of aluminum. Aluminum corrosion inhibitors are listed for use with ethy...
In this study, comparative investigation of thermal oxidation treatment for Ti-6Al-4V was carried out to determine the optimum oxidation conditions for further evaluation of corrosion-wear performance. Characterization of modified surface layers was made by means of microscopic examinations, hardness measurements and X-ray diffraction analysis. Optimum ...
Dependence of the open circuit voltage of the lithium electrode on the composition and properties of the surface film on the electrode is considered. The voltage departure from the equilibrium value is found to be a function of the corrosion rate and the ratio of ionic and electronic conductivities of the film. This ratio is shown to be related to nonstoichiometry of the ...
This report discusses the presence of corrosion products upon aluminum process tubes removed from wet portions of F Pile which led to the suspicion that the tubes might be corroding at an accelerated rate because of water entrapped in the channels between the tubes and the graphite blocks. Corrosion was especially noted on those tubes ...
... from federally funded research, testing and training ... for Research Development Test and Evaluation ... Accelerated Laboratory Corrosion Tests to Out ...
... Abstract : Enhancement of limestone sulfation in a fluidized-bed combustion environment by the addition of accelerators, such as NaCl and calcium ...
Methods of corrosion and scaling analysis, and manufacturer's literature on equipment for such analysis are compiled in the report.
The influence of O{sub 3} in combination with SO{sub 2} in the ppb range on the atmospheric corrosion of copper was investigated using on-line gas analysis and gravimetry. Corrosion products were characterized qualitatively by x-ray diffraction and quantitatively by gravimetry and ion-chromatography of leaching solutions. Mechanisms ...
Corrosion on orthopaedic implants has been studied. Twelve intramedullary nails and twelve osteosynthesis plates were implanted up to eight and thirteen years, respectively. Analysis of biological fluids from all patients was carried out and revealed high concentrations of nickel and chromium that correlated to the implantation time. All implants were ...
An analysis was made using first principles to ascertain the severity or likelihood of corrosion. Four major system components were identified and considered in detail: Interior Pipeline Corrosion by Brine, Exterior Pipeline Corrosion by Surface Soil Water, Exterior Downhole Casing Corrosion, ...
In this paper a technique that accurately predicts the produced water level in crude oil production causing accelerated corrosion of steel (defined as the corrosion rate break produced water level) and evaluates the requirement for corrosion inhibitor treatment is presented. The primary focus is preventative ...
