Title: Microstructure and Mechanical Properties of the Mo-NiCrBSi Coating Deposited by Atmospheric Plasma Spraying
Abstract: The powder used in this research (Mo-NiCrBSi) was a blend of powders composed of 75 % Mo and 25 % self-fluxing alloy NiCrBSi. With the deposition of this powder a molybdenum base self-fluxing coating is obtained. The process used for coating deposition was atmospheric plasma spraying (APS). The quality of the coatings deposited by APS depends on several parameters such as the sprayed particle size, the deposition temperature, the combustion gases, the feed speed, the angle and rate of deposition (continuous or intermittent), the spray distance, the temperature of the substrate, the pressure applied during the process, etc. All these parameters should be carefully selected in order to obtain the best coating properties for each application. In this research, three groups of the MoNiCrBSi coating specimens were produced with different spray distance parameter. Their microstructure and mechanical properties were analysed in order to find the optimal spray parameters i.e the ones that give the best structural and mechanical characteristics of the coating.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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Cited By Count: 18
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