Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 71 for “"corrosion protection"”.
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CORROSION PROTECTION OF COPPER IN OILY MEDIA: MICROSCOPIC MECHANISMS
… (TTAH) is an extensively used industrial-grade corrosion inhibitor (CI) for Cu. This PhD project developed an understanding on the microscopic mechanisms for the TTAH adsorption on Cu, and the effective protection against sulfide-attack in oily medium analogous to automotive lubricants.XPS and …
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Investigation into corrosion protection by coatings using the electrochemical noise method
… Electrochemical Noise Method to investigate the corrosion protection afforded by organic coatings. A parameter called Noise Resistance (Rn) is derived from an Ohm law relationship using the potential noise (Vn) and current noise (In) values. The noise on the current and potential data sets is …
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COLD SPRAYED COATINGS WITH DUAL NANOPARTICLE REINFORCEMENTS FOR WEAR AND CORROSION PROTECTION
… testing parameters is required. Additionally, corrosion testing was performed on cold sprayed samples for 500- and 2,000-hr trials in a salt fog chamber, revealing underlying pitting corrosion and galvanic corrosion vulnerabilities of the coatings. In the right application, the U.S. Navy could …
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Chemically-bonded enamel-coated steel pipelines for corrosion protection and flow efficiency
… thermal environments, in order to improve the corrosion protection and safety of hazardous liquid and natural gas pipelines while reducing pressure loss. Out of five types of enamels and their various mixtures, Tomatec slurry and GP2118 powder were selected for steel pipeline applications. They …
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Investigation of parameters governing the corrosion protection efficacy of fusion bonded epoxy coatings
The primary cause of corrosion in transportation structures is due to chlorides which are applied to bridge decks as deicing salts. The direct cost of corrosion damage to the country's infrastructure is approximately $8.3 billion per year. One of the most common corrosion abatement methods in the …
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Corrosion Protection Service Life of Epoxy Coated Reinforcing Steel in Virginia Bridge Decks
The corrosion protection service life extension provided by epoxy-coated reinforcement (ECR) was determined by comparing ECR and bare bar from 10 bridge decks built between 1981 and 1995. The objective was to determine the corrosion protection service life time extension provided by ECR field …
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Environmentally friendly hybrid coatings for corrosion protection: silane based pre-treatments and nanostructured waterborne coatings
… pre-treatments and organic coatings (a complete protection system at all) designed from the nanoscale. The final aim is to develop protection systems with improved corrosion protection properties and a low environmental impact. In particular, multifunctional silane hybrid molecules were used to …
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Corrosion protection mechanisms of trivalent chromium based passivations on γ-ZnNi coated Al6061-T6 alloy
… chromium passivations (TCPs) to improve corrosion resistance of γ-ZnNi coated steel and aluminum is based on its effect on hexavalent chromium content in the passive layer. Investigations of both a cobalt-containing and cobalt-free TCP on SAE 1008 steel indicated that both passivations …
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An Electrochemical Investigation into the Corrosion Protection Properties of Coatings for the Active Metal Copper
In the research presented in this thesis, corrosion protection films were synthesised and characterised. The films were based on polypyrrole (PPy) coatings doped with combinations of tartrate, oxalate and dodecylbenzene sulfonate (DBS) along with the incorporation of multiwalled carbon nanotubes …
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Laser and electron beam treatments for corrosion protection of friction stir welds in aerospace alloys
… treatment was essential to increase the corrosion resistance of the welded area. The improvement in corrosion resistance was achieved with High Power Beam Surface Modification (HPBSM), which created a homogeneous surface through rapid surface melting and solidification. The rapid thermal …
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Parameters Influencing the Corrosion Protection Service Life of Epoxy Coated Reinforcing Steel in Virginia Bridge Decks
… (ECR) and its ability to effectively provide corrosion protection in reinforced concrete highway bridge decks. An analysis was conducted on 10 bridge decks built in the state of Virginia between the years 1981 and 1995. A total of 141 cores containing either ECR or bare steel were evaluated. A …
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High-temperature corrosion protection of gas turbine blades with micro-coatings and nano-coatings : simulation and experiments
… to in excess of 1000 Celsius. High temperature corrosion is very significant therefore in such systems and either limits their use or reduces their life, considerably affecting the efficiency and the performance of the devices. One of the main methods for protecting blades from corrosion damage …
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Investigation of plasmaion vapor deposition (IVD) hybrid coatings for corrosion protection and plasma destruction of oral bacteria
… investigating low pressure plasma coatings for corrosion protection of aluminum ion vapor deposition (IVD) coated high-strength steels and in studying atmospheric non-thermal plasmas for destruction of oral bacteria. The objective of investigating plasma coatings for protection of IVD coated …
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CMZP and Mg-doped Al2TiO5 Thin film Coatings for High Temperature Corrosion Protection of Si3N4 Heat Exchangers
… severely reduced by oxidation. To increase its corrosion resistance, the formation of a protective oxidation barrier layer was promoted by the deposition of oxide thin films. Homogeneous and crack-free oxide coatings of calcium magnesium zirconium phosphate (CMZP) and magnesium doped aluminum …
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Environmentally friendly, rare earth-based inhibitors in conversion coatings and paint for the corrosion protection of aluminum alloys
… very good, they are particularly susceptible to corrosion. Coatings are commonly used to protect these aluminum alloys to corrosive attack. One type of coating, called a conversion coating, is a thin, inorganic film normally deposited directly on the bare metal surface. The other types of …
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