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5457 |
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Comparison of the corrosion resistance of different thermally sprayed coatings in the sweetwater and marine environment |
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Maria Fedorova* / Technological Systems for Protective Coatings, Ltd., Russian Federation Lev Baldaev / Technological Systems for Protective Coatings, Ltd, Russia Sergey Baldaev/ Technological Systems for Protective Coatings, Ltd., Russia Nicolay Baldaev/ Technological Systems for Protective Coatings, Ltd, Russia Alsu Akhmetgareeva/ Technological Systems for Protective Coatings, Ltd., Russia Varvara Martyanova/ Technological Systems for Protective Coatings, Ltd., Russia |
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Corrosion, cavitation and biofouling are three predominate worldwide concerns in modern marine and river industries. It is worth noting that today large-scale fabrication of protective coatings with both sufficient corrosion and cavitation resistance yet remains elusive. The paper addresses this knowledge gap and reports the corrosion and cavitation performance of four different coatings. In this study coatings were deposited on stainless steel substrates by thermal spraying, aiming at possessing the capability of wear, corrosion and cavitation resistance in the fresh water and synthetic seawater. The quality and the characteristics of the coating were evaluated by destructive and non-destructive examination methods. Also the cavitation erosion behaviour can be considered as a measure of coating quality with respect to coating cohesion, therefore indirect cavitation erosion tests were performed. Additionally, corrosion laboratory investigation such as climatic exposure tests was also performed. The strategy of investigating different coatings gives bright insight into potential protective applications in the river and marine environment. |