... behavior, are discussed on the background of available literature. sour corrosion under-deposit corrosion galvanic corrosion H₂S iron sulphide INTRODUCTION The occurrence of under-deposit corrosion (UDC) in the oil and gas industry is mainly confined to stagnant or low-flow regions...

... main pipes, presents specific case histories involving graphitic corrosion, galvanic corrosion, stray current corrosion, and MIC. In this paper, we will introduce a graphitization sensor for condition assessment of water mains. This sensor can identify the location and extent of graphitization on water...

... could provide. Corrosion control Zn-based alloy coatings cathodic protection galvanic corrosion INTRODUCTION In the US, natural gas accounts for one third of the energy consumed [ 1 ]. The gas pipeline network consists of more than 210 individual pipeline systems and nearly 300,000 miles, Figure 1...

..., of the predicted number of crack growth cycles, to available experimental test results was achieved. Galvanic Corrosion Atmospheric Exposure Measurements Corrosion Pitting Fracture Mechanics Computational Modelling INTRODUCTION There is an urgent industry need to include the effects of existing corrosion...

... Kammprofile Corrosion Galvanic Corrosion G10 GRE Cathodic Protection Fire Safe Flange INTRODUCTION It may seem obvious, but the key role of any gasket in a flanged joint connection is to seal the media to prevent leaking from the connection. This is at first a relatively straight forward task, however...

..., to available experimental test results was achieved. Galvanic Corrosion Atmospheric Exposure Measurements Corrosion Pitting Fracture Mechanics Computational Modelling INTRODUCTION There is an urgent industry need to include the effects of existing corrosion damage in structural integrity analysis...

... + 4 e − ↔ 4 O H − Coating the stainless steel (more noble metal) components is recommended to reduce overall galvanic corrosion current. This solution on its own may not eliminate galvanic corrosion, but it should significantly reduce the impact. However, the tank would need to be taken out...

..., and the measures implemented to overcome it. unusual corrosion organic solvent process petrochemical plants galvanic corrosion INTRODUCTION In petrochemical process plants, the feedstocks are converted, normally by mixing with other products and by the application of heat, which causes a chemical reaction...

... be counteracted by significant cathodic activity on the surfaces of electrically conductive iron sulfides and galvanic corrosion of the underlying steel surface. Experimental and modelling work were performed to quantify the effects that parameters such as layer thickness and porosity, H₂S partial...

... corrosion resistant to low concentration of hydrochloric acid solution than austenite due to the stability of passive film. On the other hand, in highly reducing hydrochloric acid solution, ferrite has inferior corrosion resistance compare to austenite. Galvanic corrosion between the two constituent phases...

... in these devices, the expanding range of environments in which these devices operate or the evolution of materials utilized in these devices. The layered configurations of microelectronics may facilitate either interfacial or galvanic corrosion, and therefore work is needed to characterize the susceptibility...

... to ninety percent of corrosion is due to galvanic interactions at dissimilar metal couples. As new materials are introduced with the acquisition of more advanced aircraft, galvanic corrosion is likely to remain a concern. The ability to model galvanic corrosion accurately holds the promise of being able...

... against these six alloys in a 3.5% NaCl solution for 30 days immersion are also reported in this paper. UNS C69100 alloy marine corrosion galvanic corrosion electrochemical impedance spectroscopy zero-resistance ammetry INTRODUCTION Tungum alloy ⁽¹⁾ (UNS C69100) is an aluminum-nickel...

... was formed at a lower potential than E_corr. The reason for this is not completely understood, but biofilms seems to be affected by the pH at the cathode surface, which vary with the cathodic polarization potential and cathodic current density. ⁷ Abstract The galvanic corrosion...

... identified some interesting and unexpected interactions which required the design of the CP system to be modified. Galvanic corrosion Cathodic Protection FPSO ICCP Interference INTRODUCTION Interference can significantly affect the performance of Cathodic Protection (CP) systems designed to protect...

...Abstract The open-circuit potential is one of the main driving force of galvanic corrosion when two dissimilar metals are in electrical continuity in an electrolyte. From the existing literature the galvanic series which provide averaged potential of metallic materials in seawater are generally...

... under ion beam sputter deposited coatings of heavy metals in pressurized simulated geothermal brines. Preliminary results to prove the methodology are presented. Geothermal galvanic corrosion arsenic antimony carbon steel INTRODUCTION Geothermal energy accounts for about 16% of New Zealand’s...

... show that for the conditions studied in this work, all polymorphs act as cathodes when coupled to steel electrodes, with pyrrhotite having the largest effect of the polymorphs studied. sour corrosion galvanic coupling galvanic corrosion H₂S iron sulfide INTRODUCTION Iron sulfides...

... (232 C). Galvanic Effects Between Ti-alloys and Other Materials on SCC The environments for the galvanic corrosion evaluation were determined from the results of prior SSR tests. The galvanic SSR tests were generally run in the maximum severity environments which did not produce SCC as determined...

...Abstract Equipment for drilling risers and subsea oil exploration involve use of many metals with the risk of galvanic corrosion, if not protected or maintained properly. Paint coated steel accounts for the majority for of such structures, but temporary coated steel, stainless steel and hard face...