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Solid particle erosion studies of thermally deposited alumina-titania coatings on an aluminum alloy

International Journal of Minerals,Metallurgy and Materials 2021年第7期28卷 1186-1193页

作者： Chellaganesh Duraipandi Adam Khan M Winowlin Jappes J.T. Nouby MGhazaly peter madindwa mashinini School of Automotive and Mechanical Engineering and Centre for Surface Engineering Kalasalingam Academy of Research and EducationKrishnankoil 626126VirudhunagarTamilnaduIndia Mechanical Engineering Department Faculty of EngineeringSouth Valley UniversityQena 83523Egypt Department of Mechanical and Industrial Engineering Technology University of JohannesburgDoornfontein CampusJohannesburg 2028South Africa

Thermal barrier coatings are widely used as surface modifications to enhance the surface properties of the material and protect from surface degradations such as erosion and ***-based coatings are highly recommended to increase wear resistance in the indus-trial *** this paper,an alumina-titania ceramic powder was deposited on an aluminum alloy using an atmospheric plasma spray *** investigations were performed to study the behavior and erosion rate of the *** particle erosion studies were performed by varying the particle velocity and particle flow *** angle impingement and stand-off distance were constant for *** base metal has a clinging effect and the mass change was negative at a maximum particle flow rate of 4 g·min^(−1).Under the same process conditions,the coated sample had a reduced lifetime and reached a maximum erosion rate of 0.052(Δg/g).The solid particle erosion studies confirmed that the base metal aluminum alloy had severe surface damage with erodent reinforcement when compared to the coated *** influence of the particle velocity,particle flow rate,and input process parameters were also identified.

关键词： erosion alumina wear velocity microstructure

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