1. Evaluation of the corrosion properties of a coated layer produced by flame spray for use in industrial applications.
- Author
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Abdulzahra, Saja A., Abdulkader, Niveen J., and Hashim, Fadhel A.
- Subjects
- *
METAL coating , *ATOMIC force microscopes , *CARBON steel corrosion , *METAL spraying , *SCANNING electron microscopes , *SPRAYING , *FLAME spraying - Abstract
The corrosion-resistant nature of carbon steel necessitates adopting various surface engineering techniques to shield them from aggressive environments like the marine. The primary goal of this investigation is to assess how well thermal flame spray-applied metallic zinc coatings on carbon steel resist corrosion. Flame thermal spraying is used to control the best-coated layer for estimation, using standoff distances of 100, 125, and 150 mm, powder feed rates of 10 g/min, and gun carrier transverse velocities of 75 mm/min. The coatings are assessed based on their characteristics to determine how rough and thick they can be. Electrochemical (Tafel) experiments, using a corrosion medium of 3.5% sodium chloride solution, are employed to assess the protection against corrosion. The microstructure and corrosion behavior of the prepared coating is studied by an atomic force microscope (AFM), scanning electron microscope (SEM), and other methods. The protective impacts of zinc coatings are investigated using a scanning electron microscope, which reveals roughness and certain defects. The Zn-anti-corrosion coating's abilities are remarkable. Zn-coating is effectively applied to carbon steel using flame spray technology to prevent corrosion in the marine environment, based on examining corrosion products and microstructure development. This is due to Zn's sacrificial anode protection mechanisms. All the experimental tests for Zn-coatings can be obtained in optimum conditions by the flame spraying technique. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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