.../waste water, etc. These coatings provide excellent corrosion and erosion resistance for metal and concrete surfaces. EIS is a useful tool to investigate corrosion/erosion resistance of these protective coatings under various environment conditions. EIS can measure impedance of coatings and phase angle...

..., environment, and alloy properties. These are explored and defined to produce a method that quantifies the crack initiation resistance provided by protective coatings for high strength aluminum alloy 7075-T651, enabling comparison between coatings. Accurate assessment of coating performance will reduce...

... for buried or immersion service is a combination of protective coatings and cathodic protection. However, when applied improperly, cathodic protection may result in damage to the protective coating. Cathodic disbondment testing evaluates a coating’s resistance to disbondment in the presence of cathodic...

... time and crack growth rate including galvanic couples, crevices, and protective coatings are being investigated. Environment-assisted cracking corrosion fatigue atmospheric corrosion protective coatings INTRODUCTION High strength aluminum alloys, such as the 7xxx series, are susceptible...

... not provide antifouling protection and under process streams containing high H₂S levels are not suitable. Utilizing a protective coating that can supply both corrosion resistance and antifouling provides a novel solution. Our work in this area ¹ was previously described at a NACE...

... energy. The hope is that, ultimately, an as accurate data basis as possible combined with experience and knowledge will lead to more standardized structures and hence reduction of cost. But to be more successful, more cooperation is needed. Offshore Wind Marine Corrosion Fatigue Protective Coatings...

... and professionally developed cost estimates. It is a follow-up to the CORROSION 2017 paper evaluating the cost of protective coatings options for penstock relinings. The new work focuses on the cost-effectiveness of including cathodic protection (CP) in conjunction with protective coatings. The output includes...

...protective coatings cathodic delamination test parameters cathodic disbonding test parameters hypochlorite anode isolation C l 2 (  anode  ) + 2 OH − ( cathode  ) → H 2 O + C 1 − + C 1 O − Hypochlorite is an aggressive species and attacks the coatings...

... and equipment costs associated with surface preparation, fluxing, dipping, and cooling for hot dip galvanizing are included in Tables 1A and 3 . Typical Material Costs of Paints and Protective Coatings TABLE 2 Typical Material Costs of Paints and Protective Coatings Approximate Cost Per Square Foot...

...Abstract Protective coatings are used ubiquitously as the primary means of corrosion defense for buried or immersed metallic structures. Cathodic protection is often used in conjunction with coatings as a secondary means of corrosion protection, however it can also have detrimental effects...

... with higher initial investment cost but longer service and less maintenance is the most long cost-effective option over a coating with a lower up-front cost ¹⁵ . Recent studies applying LCC analysis to protective coatings for corrosion control include Helsel et al ¹⁶ , Helsel ¹⁷...

...Abstract Protective coatings in the oil and gas industry play an important role in the reduction of maintenance and repair costs for equipment and tools. In this paper, we introduce electroplating of Ni-W-B and Ni-W-B-nanodiamond metal matrix nanocomposite protective coatings as an alternative...

...Abstract After more than 15 years’ service life of the first large offshore wind farms in the North Sea, mostly positive experiences are reported on the condition of the protective coating systems. Today however, the requirements for corrosion protection for new projects are often extended...

...Abstract This paper is an update to “Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work” co-authored by J. L. Helsel, R. Lanterman and M. Reina for NACE Corrosion 2014. Designed to assist the coatings engineer or specifier in identifying...

... a number of experimental techniques. We have used a combination of well-established accelerated test methods for general protective coatings and we have developed original test protocols, always with the environmental conditions found under thermal insulation in mind. Abstract During the past three years...

... consistently harder than the substrate for each activator, with an especially hard mid-layer in some cases. Halide Activated Pack Cementation nickel chromium aluminizing HAPC protective coatings aluminide coatings INTRODUCTION Halide Activated Pack Cementation (HAPC) is a cost-effective, versatile...

... systems and the desired properties of a good coating will change from one application to another. It is estimated that the value of the protective coatings market is around $3-4 billion dollars in Canada. Therefore, analyzing the protective coating sector for potential opportunities becomes significant...

... or localized corrosion is not taken into account in the available curves and more research is needed in this field. Presently several wind farm owners have chosen the very conservative solution for the inside corrosion protection of new foundations including protective coatings, corrosion allowance and CP...

..., there are three service environments corresponding to exposure to potable water, fresh water, and salt water. Abstract This paper is an update to “Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work” co-authored by J. L. Helsel, R. Lanterman and K. Wissmar...

... Navy Marine Protective Coatings Assessment Methods Failure Analysis Standardization Rusting Blistering Sacrificial Anodes INTRODUCTION Maintenance organizations and owners of infrastructure must address sustainability of their property. Bridges, ships, and structures contain metals...