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Abstract

The solid particle erosion resistance of hard anodised 6061–T651 aluminium alloy was determined at room temperature using slinger erosion apparatus. Experimental conditions were chosen to represent erosion in gas turbine engine fuel systems. This study revealed that while hard anodised coatings offer significant sliding wear resistance compared with the uncoated aluminium alloy, the erosion resistance at all angles of incidence was inferior to the uncoated basis metal. Neither variation in the initial coating thickness, nor the extent of solid particle erosion penetration into the coating significantly affected the erosion rates. Likewise, the hard anodised coating did not degrade the erosion resistance of the basis metal.

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Solid particle erosion of hard anodised and uncoated 6061–T651 aluminium alloy

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