The Experts below are selected from a list of 7788 Experts worldwide ranked by ideXlab platform
Paul Predecki - One of the best experts on this subject based on the ideXlab platform.
-
The role of Corrosion product deposition in Galvanic Corrosion of aluminum/carbon systems
Corrosion Science, 2017Co-Authors: Eva Håkansson, Joseph Hoffman, Paul PredeckiAbstract:This study is concerned with the role of Corrosion product deposition in the Galvanic Corrosion between aluminum and Carbon Fiber Reinforced Polymer matrix composite (CFRP). The Galvanic Corrosion of a high voltage conductor assembly consisting of a cylindrical CFRP rod surrounded by tightly wound aluminum wires has been investigated through experimental work and modeling. The main Corrosion product is Al(OH)3, which presents as a gelatinous substance in the crevices between the Al wires. The formation of Al(OH)3was observed to coincide with the decay in the Galvanic Corrosion current. A new analytical model was developed to investigate if the decay could be caused by Corrosion products restricting the transport of oxygen to the cathode. Modeling of the oxygen diffusion through the deposited Corrosion products generated Galvanic Corrosion rates that agreed well with the experimental measurements after an early exponential decay period. The findings suggest that the Corrosion product deposition may be the most important Galvanic Corrosion rate controlling mechanism in this geometry and similar geometries.
-
the role of Corrosion product deposition in Galvanic Corrosion of aluminum carbon systems
Corrosion Science, 2017Co-Authors: Eva Håkansson, Joseph Hoffman, Paul PredeckiAbstract:Abstract This study is concerned with the role of Corrosion product deposition in the Galvanic Corrosion between aluminum and Carbon Fiber Reinforced Polymer matrix composite (CFRP). The Galvanic Corrosion of a high voltage conductor assembly consisting of a cylindrical CFRP rod surrounded by tightly wound aluminum wires has been investigated through experimental work and modeling. The main Corrosion product is Al(OH)3, which presents as a gelatinous substance in the crevices between the Al wires. The formation of Al(OH)3 was observed to coincide with the decay in the Galvanic Corrosion current. A new analytical model was developed to investigate if the decay could be caused by Corrosion products restricting the transport of oxygen to the cathode. Modeling of the oxygen diffusion through the deposited Corrosion products generated Galvanic Corrosion rates that agreed well with the experimental measurements after an early exponential decay period. The findings suggest that the Corrosion product deposition may be the most important Galvanic Corrosion rate controlling mechanism in this geometry and similar geometries.
Eva Håkansson - One of the best experts on this subject based on the ideXlab platform.
-
The role of Corrosion product deposition in Galvanic Corrosion of aluminum/carbon systems
Corrosion Science, 2017Co-Authors: Eva Håkansson, Joseph Hoffman, Paul PredeckiAbstract:This study is concerned with the role of Corrosion product deposition in the Galvanic Corrosion between aluminum and Carbon Fiber Reinforced Polymer matrix composite (CFRP). The Galvanic Corrosion of a high voltage conductor assembly consisting of a cylindrical CFRP rod surrounded by tightly wound aluminum wires has been investigated through experimental work and modeling. The main Corrosion product is Al(OH)3, which presents as a gelatinous substance in the crevices between the Al wires. The formation of Al(OH)3was observed to coincide with the decay in the Galvanic Corrosion current. A new analytical model was developed to investigate if the decay could be caused by Corrosion products restricting the transport of oxygen to the cathode. Modeling of the oxygen diffusion through the deposited Corrosion products generated Galvanic Corrosion rates that agreed well with the experimental measurements after an early exponential decay period. The findings suggest that the Corrosion product deposition may be the most important Galvanic Corrosion rate controlling mechanism in this geometry and similar geometries.
-
the role of Corrosion product deposition in Galvanic Corrosion of aluminum carbon systems
Corrosion Science, 2017Co-Authors: Eva Håkansson, Joseph Hoffman, Paul PredeckiAbstract:Abstract This study is concerned with the role of Corrosion product deposition in the Galvanic Corrosion between aluminum and Carbon Fiber Reinforced Polymer matrix composite (CFRP). The Galvanic Corrosion of a high voltage conductor assembly consisting of a cylindrical CFRP rod surrounded by tightly wound aluminum wires has been investigated through experimental work and modeling. The main Corrosion product is Al(OH)3, which presents as a gelatinous substance in the crevices between the Al wires. The formation of Al(OH)3 was observed to coincide with the decay in the Galvanic Corrosion current. A new analytical model was developed to investigate if the decay could be caused by Corrosion products restricting the transport of oxygen to the cathode. Modeling of the oxygen diffusion through the deposited Corrosion products generated Galvanic Corrosion rates that agreed well with the experimental measurements after an early exponential decay period. The findings suggest that the Corrosion product deposition may be the most important Galvanic Corrosion rate controlling mechanism in this geometry and similar geometries.
Joseph Hoffman - One of the best experts on this subject based on the ideXlab platform.
-
The role of Corrosion product deposition in Galvanic Corrosion of aluminum/carbon systems
Corrosion Science, 2017Co-Authors: Eva Håkansson, Joseph Hoffman, Paul PredeckiAbstract:This study is concerned with the role of Corrosion product deposition in the Galvanic Corrosion between aluminum and Carbon Fiber Reinforced Polymer matrix composite (CFRP). The Galvanic Corrosion of a high voltage conductor assembly consisting of a cylindrical CFRP rod surrounded by tightly wound aluminum wires has been investigated through experimental work and modeling. The main Corrosion product is Al(OH)3, which presents as a gelatinous substance in the crevices between the Al wires. The formation of Al(OH)3was observed to coincide with the decay in the Galvanic Corrosion current. A new analytical model was developed to investigate if the decay could be caused by Corrosion products restricting the transport of oxygen to the cathode. Modeling of the oxygen diffusion through the deposited Corrosion products generated Galvanic Corrosion rates that agreed well with the experimental measurements after an early exponential decay period. The findings suggest that the Corrosion product deposition may be the most important Galvanic Corrosion rate controlling mechanism in this geometry and similar geometries.
-
the role of Corrosion product deposition in Galvanic Corrosion of aluminum carbon systems
Corrosion Science, 2017Co-Authors: Eva Håkansson, Joseph Hoffman, Paul PredeckiAbstract:Abstract This study is concerned with the role of Corrosion product deposition in the Galvanic Corrosion between aluminum and Carbon Fiber Reinforced Polymer matrix composite (CFRP). The Galvanic Corrosion of a high voltage conductor assembly consisting of a cylindrical CFRP rod surrounded by tightly wound aluminum wires has been investigated through experimental work and modeling. The main Corrosion product is Al(OH)3, which presents as a gelatinous substance in the crevices between the Al wires. The formation of Al(OH)3 was observed to coincide with the decay in the Galvanic Corrosion current. A new analytical model was developed to investigate if the decay could be caused by Corrosion products restricting the transport of oxygen to the cathode. Modeling of the oxygen diffusion through the deposited Corrosion products generated Galvanic Corrosion rates that agreed well with the experimental measurements after an early exponential decay period. The findings suggest that the Corrosion product deposition may be the most important Galvanic Corrosion rate controlling mechanism in this geometry and similar geometries.
Du Zhi-jie - One of the best experts on this subject based on the ideXlab platform.
-
Effect of Surface Anodization on Galvanic Corrosion of 7050 Aluminum Alloys
Journal of Xi'an Technological University, 2011Co-Authors: Du Zhi-jieAbstract:In order to study the effect of surface anodization on the Galvanic Corrosion of 7050 aluminum alloys,the sensibility of Galvanic Corrosion of 7075 aluminum alloy and TC18 titanium alloy is assessed by determining their Galvanic current.It is found that the Galvanic Corrosion is serious when 7050 aluminum alloy contacts TC18 titanium alloy,with the sensitivity of Galvanic Corrosion being is D-level.But the Galvanic Corrosion sensitivity of the couples is decreased by anodizing,the sensitivity of Galvanic Corrosion is lowered to B-level,thus improving the anti-Corrosion property.
-
A Study on Galvanic Corrosion Between 7475 Aluminum Alloy and TC18 Titanium Alloy
Journal of Xi'an Technological University, 2010Co-Authors: Du Zhi-jieAbstract:In order to study the Galvanic Corrosion of 7475 aluminum alloy,the Galvanic Corrosion of the 7475 aluminum alloy with TC18 titanium alloy is measured by means of current density of electric couples.The morphology and the depth of the Corrosion surface are analyzed by a SEM and an optical microscope.The Galvanic Corrosion sensitivity of the 7475 aluminum alloy and TC18 titanium alloy in use is studied.The results show that the Galvanic Corrosion between 7475 aluminum alloys and TC18 titanium alloy is serious and the sensitivity of Galvanic Corrosion is of C-level.The Galvanic Corrosion sensitivity of couples can be decreased to A-level by anodization.The current density can be decreased further by applying paint after 7475 being anodized.
F. Thebault - One of the best experts on this subject based on the ideXlab platform.
-
reliability of numerical models for simulating Galvanic Corrosion processes
Electrochimica Acta, 2012Co-Authors: F. Thebault, Christian Allely, Roland Oltra, Bruno Vuillemin, Kevin OgleAbstract:Maturity of numerical simulation represents an important issue in the development of predictive models of Galvanic Corrosion. As widely used in electrochemical engineering, a coupled electrochemical-transport-reaction (CETR) model is recommended to simulate the current distribution above a Galvanic Corrosion cell made of the cut-edge of a galvanized steel sheet. Nevertheless, simulating current density distributions obtained experimentally by scanning vibrating electrode technique (SVET) above such a Galvanic cell appears to be more accurate using an electrostatic model considering a homogeneous conductivity. In this case, the absence of concentration gradients next to the electrode surface results from convection induced by the microelectrode vibrations.
