...Flow assurance Surface Treatment Coating Asphaltene Wax Adhesion Deposition INTRODUCTION Deposition can occur based on many species present in oil production lines. Some components, such as waxes and asphaltenes come from species contained within the produced oil, while others...

... and the performance of the coating was evaluated using pull-off adhesion strength, cathodic disbondment and Atlas cell wet thermal gradient tests. The strength of correlations among the roughness parameters and the FBE coating performance results were compared. Tortuosity, measured with a stylus profilometer...

... of offshore pitted stainless steels. The following lab tests were performed to determine the performance of various coating systems: 1) adhesion test, 2) water vapor permeation, 3) underfilm corrosion, and 4) holiday-free film formation. As a result of this work, protective coating systems...

... behave the same for example) Post immersion tests are now more common. These allow the test to generate more information than a simple visual inspection. Adhesion tests ^{12 , 16} can demonstrate reduced performance which may not be visible in the earlier simple tests. Abstract Changing...

...This paper presents results for corrosion resistance and adhesion of organic coatings on surfaces with varying surface topography and roughness. Samples were machined by three different machining processes and blasted with four different grit sizes. Surface roughness parameters, peak density...

... (CMC). Further kinetic study indicates that the developing of a full film takes about 6 hours. Quantitative force measurements were performed to evaluate the mechanical and adhesion properties of inhibitor films. Results show that the stress, needed to physically remove adsorbed inhibitor molecules...

... little or no effect on scribe creep during the cyclic test. For all other test parameters, there were significant reductions in the coatings’ performance as the salt concentrations increased. adhesion blistering cathodic disbonding scribe creep underfilm corrosion INTRODUCTION The performance...

... of steel members and rapidly changing temperatures can negatively impact thick film coatings. This paper explores the room temperature and low temperature properties of epoxy intumescent PFP coatings. Tensile properties and adhesion values at room temperature down to −40°C have been measured...

... tolerance in wet condition. Types and designation for each coating system are summarized in Table 1 . The dimension of carbon steel coupons was either 300mm × 100mm × 1.6 mm or 300mm × 100mm × 3 mm, which were used for adhesion test specimen. All specimens were blasted to Sa 2½ and St 3 only for power tool...

...) and mainline pipe coatings, and (ii) 3LPP coating disbondment from fusion bonded epoxy (FBE) -steel interface. The PP cracking is attributed to thermo-oxidative degradation and high residual stresses in PP. The coating disbondment has been found to be due to high residual stress concentration and adhesion loss...

... barrier blocks the exchange of ions therefore halting corrosion of the metal substrate. Adhesion is critical to such a system. Good adhesion is achieved by a rough angular profile on the substrate to allow the polymer to physically grip the substrate. Common standards require at least a 3.0 mil (76...

... * Author to whom correspondence should be addressed: Department of Mechanical Engineering University of South Florida, Tampa, FL 33620, Phone: (813) 974-5658 Fax: (813) 974-3539, Email: [email protected] The effect of moisture on interfacial adhesion can be considered by first identifying...

...). Such knowledge is a necessity in order both to implement corrective measures to prevent this problem in the future, and to improve the qualification test methodology. A finite element method (FEM) approach has been suggested in order to determine the importance of different coating properties, e.g. adhesion...

.... Corrosion resistance was evaluated under GM 9540P⁵ and ASTM B 117⁶ neutral salt fog (NSF) methods. Adhesion was assessed under dry conditions using ASTM D 4541⁷ pull-off and under wet conditions using ASTM D3359A⁸. Prior to coating, the conversion coated surfaces...

... coating has improved UV resistance. The new FBE should be used where superior cathodic disbondment performance at high temperature is needed. Fusion bonded epoxy cathodic disbondment (CD) high temperature corrosion resistance adhesion glass transition temperature DSC INTRODUCTION Fusion bonded...

... environment for years. ECTFE develops an ultimate adhesion strength on metal substrates greater than its break strength, when it is applied properly. Without primer, ECTFE coating still develops similar adhesion strength at a slower rate. The bulkier chlorine atom provides a higher barrier energy...

... additional performance validation that may yield a greater degree of confidence with current formulations. Fusion Bonded Epoxy (FBE) melt sticks adhesion Differential Scanning Calorimeter (DSC) cathodic disbondment porosity glass transition temperature Tg INTRODUCTION Assessment of the integrity...

... of FBE coatings are examined to see which has the largest effect. These three factors were examined because they are all thought to have some effect on cathodic disbondment (CD), a low application temperature has been blamed as causes as loss of adhesion. These effects were examined for conventional...

... obtained with smooth and glittering appearance. At the same time, the composite complexants can prevent copper from depositing first and obtain coatings with strong adhesion. The porosity of Ni-Cu-P coating (20 μ m) ranked class 9. The coating color changes after at least 800 second when HNO₃...

...Abstract The corrosion and the adhesion of substrates were investigated as a function of the surface textures of various austenitic and ferritic-austenitic duplex stainless steel. The lowest corrosion resistance was found on coarsely ground surfaces, the highest on pickled surfaces. The relative...