Study on Erosion Resistance of HVFS Fe-Al/SiC Composite Coating
The composite coating of Fe-Al/SiC was made by the method of high velocity flame spraying(HVFS). The corrosion resistance of the coatings were investigated. The morphology of the coating surface after corrosion was analyzed by SEM. The results show that the conversion from brittle erosion to plastic erosion occurs as the temperature of the composite coatings rising. The angle of erosion has important impact on the corrosion-resistance of coatings. The corrosion-resistance of the coatings at erosion angle of 45° is better than that of 90°. The damage of coating at 45° is mainly due to impact-scraping, and that at 90° is mainly due to percussive penetration.