Article ID Journal Published Year Pages File Type
7003048 Tribology International 2015 41 Pages PDF
Abstract
In this study, high-velocity oxygen-fuel sprayed amorphous coatings have been heat treated at various temperatures to form microstructures with crystalline phases. The structure, micro-hardness, cavitation erosion resistance and erosion-corrosion resistance of these coatings are compared. Crystalline phases are discovered in the coatings after heat treatments at 650 °C and 750 °C. The coating heat treated at 750 °C exhibits the poorest cavitation erosion resistance in 3.5 wt% NaCl solution among all coatings due to the degraded corrosion resistance. However, the hardness of the crystallized coating can reach 1000 Hv and the erosion-corrosion resistance of the heat treated coating is better than the untreated one.
Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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