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06

Effect of Polymer and Ceramic Crevice Formers on the Crevice Corrosion of Ni-Cr-Mo Alloy 22

host posted on October 06, 2010 08:00
X. Shan and J. H. Payer
One important factor affecting crevice corrosion of passive metals is the crevice geometry, e.g., the gap of the crevice. The crevice geometry can be affected by the properties of the materials used as the crevice formers, i.e., a polymeric crevice former can conform to the surface roughness of a m ... [Corrosion 66, 105005 (2010)] published Fri Oct 01, 2010.

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06

Effect of Residual Stress of Dissimilar Metal Welding on Stress Corrosion Cracking of Bottom-Mounted Instrumentation Penetration Mock-Up

host posted on October 06, 2010 08:00
S. -W. Kim, H. -P. Kim, and J. -U. Jeong et al.
The present article is concerned with the effect of a residual stress induced by a dissimilar metal welding on stress corrosion cracking (SCC) of an Alloy 600 (UNS N06600) bottom-mounted instrumentation nozzle as a penetration mock-up in a pressurized water reactor. From a finite element analysis ( ... [Corrosion 66, 106001 (2010)] published Fri Oct 01, 2010.

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06

Electrochemical Behavior of Cast CuAg4at% Alloy

host posted on October 06, 2010 08:00
M. Rajc̆ić-Vujasinović, S. Nestorović, and V. Grekulović et al.
The CuAg4at% alloy exhibits the anneal-hardening effect, which has been seen in previous investigations in both cast and sintered CuAg4at% alloys. The goal of this work was to study corrosion properties of the cast alloy in different stages of its synthesis and thermomechanical treatment. The elect ... [Corrosion 66, 105004 (2010)] published Fri Oct 01, 2010.

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06

Understanding the Atmospheric Degradation of Noble Metal-Plated Connector Materials

host posted on October 06, 2010 08:00
D. G. Enos
The current level of understanding of the atmospheric environmental degradation of gold-plated copper with and without a nickel underplate (and related materials) has limited the effectiveness of mathematical models aimed at predicting device lifetime/reliability. Efforts to understand this phenome ... [Corrosion 66, 105003 (2010)] published Fri Oct 01, 2010.

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06

Comparison of Impressed Current Cathodic Protection Numerical Modeling Results with Physical Scale Modeling Data

host posted on October 06, 2010 08:00
Y. Wang and K. J. KarisAllen
Physical scale modeling (PSM) is an experimental technology that has been used to evaluate and design shipboard impressed current cathodic protection (ICCP) systems by various researchers and designers. PSM is also a preferred tool for validating ICCP numerical modeling results, owing to the well-c ... [Corrosion 66, 105001 (2010)] published Fri Oct 01, 2010.

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01

Predicting the Effect of Soil Seasonal Change on Stress Corrosion Cracking Susceptibility of Buried Pipelines at High pH

host posted on September 01, 2010 03:33
F. M. Song
Soil seasonal change is believed to be one of the major factors that contribute to high-pH stress corrosion cracking (SCC) of underground pipelines, although the specific role and mechanisms of the soil seasonal change in the SCC susceptibility are not clearly understood. This study is directed at ... [Corrosion 66, 095004 (2010)] published Wed Sep 01, 2010.

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01

Investigation of the Galvanic Mechanism for Localized Carbon Dioxide Corrosion Propagation Using the Artificial Pit Technique

host posted on September 01, 2010 03:33
J. Han, B. N. Brown, and S. Nes̆ić et al.
Localized carbon dioxide (CO2) corrosion is the most dangerous type of internal corrosion to mild steel pipelines in the oil and gas industry since the penetration rate of localized corrosion can be one or more magnitudes higher than that of uniform corrosion. In this study, the focus is on propaga ... [Corrosion 66, 095003 (2010)] published Wed Sep 01, 2010.

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01

Utility of Submerged Anodes for Cathodic Protection of Above-Waterline Reinforced Concrete Elements—Part 2: Bulk Magnesium Anodes

host posted on September 01, 2010 03:33
F. Presuel-Moreno and W. H. Hartt
In a previous paper (Part I), the utility of Zn-submerged bulk anodes (ZnSBA) for providing cathodic protection to the above-waterline portion of a marine-reinforced concrete bridge substructure was investigated. It was determined that polarizations greater than 100 mV reached to the top of cast-in ... [Corrosion 66, 096001 (2010)] published Wed Sep 01, 2010.

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01

High-Temperature Electrochemical Sensor for Online Corrosion Monitoring

host posted on September 01, 2010 03:33
K. T. Chiang and L. Yang
Electrochemical sensors incorporating diamond-like carbon (DLC)-coated electrodes are effective tools for online, real-time corrosion monitoring at high temperatures. A vacuum-based chemical vapor deposition process was used to deposit a DLC thinfilm coating on the surface of the sensing electrodes ... [Corrosion 66, 095002 (2010)] published Wed Sep 01, 2010.

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01

Characterizing the Relaxation of the Open-Circuit Potential during an AC-DC-AC Accelerated Test

host posted on September 01, 2010 03:33
K. N. Allahar, V. Upadhyay, and G. P. Bierwagen et al.
The non-conventional accelerated alternating current-direct current-alternating current (AC-DC-AC) testing method for organic coatings induces degradation by promoting cathodic reactions at the metal coating interface and ionic transport in the bulk of the coating. This cyclic method involves a tes ... [Corrosion 66, 095001 (2010)] published Wed Sep 01, 2010.

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