Microstructure and Wear Performance of Arc Sprayed Fe-FeB-WC Coatings |
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Authors: | Ding-Yong He Bin-You Fu Jian-Min Jiang Xiao-Yan Li |
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Affiliation: | 1. College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
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Abstract: | Two Fe-FeB-WC coatings were deposited on the Q235 steel substrate by arc spraying. The microstructure and the abrasive wear performance of the coatings were characterized by x-ray diffraction (XRD) and scanning electron microscope (SEM). The wear mechanisms of the coatings were examined. It was found that Fe-Cr alloy and Fe2B are present in the coating as the main phases. The results showed that adding hard particle powders could obviously increase the hardness and wear resistance of the coatings. The average microhardness of the coatings was about 870 to 920 HV0.1. The coatings exhibited excellent abrasive wear resistance, being 3.3 to 4.8 times higher than that of arc sprayed 3Cr13 coating. |
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