Metal Spray Deposition and Corrosion Properties of Brass Coatings on Plain Carbon Steel Substrates
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 17, Issue 2
Abstract
Coating is a process that is partially or completely applied on the surface of the elements and alloys in different ways to prevent the base metal from corrosion, wear and failure at high temperatures. Thermal spray coating is one of the most effective coating methods to protect surfaces. In this process, relatively thick coatings layer is deposited. Optimum coverage conditions are selected based on the desired requirements. In this research, brass alloys with thicknesses of 0.75 and 1 mm were coated on plain carbon steel via metal spray coating method. In order to study the surface behavior, corrosion testing was performed to determine corrosion conditions. Salt spraying was also performed to determine the lifetime of the coating, and finally a pin to disk wear test was performed. The corrosion test indicated that the improved corrosion conditions of the coating by increasing the thickness of the coated layer. Salt spray tests showed that the sample is resistant to corrosion up to 48 hours at laboratory condition, which is equivalent to 1000 hours of work in real saline environments. Also, the results of the test of the pin on the disk indicate irregular changes in friction over time, and more indicative of the shearing mechanism of the laminate surface with fatigue.
Authors and Affiliations
Mohammad Reza Dastan*, Gholam Hosein Khalaf
Keywords
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