Microstructure and wear resistance of electro-thermal explosion sprayed stellite coating used for remanufacturing |
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| Authors: | Jin Guo Xu Bin-shi Wang Hai-dou Li Qing-fen Wei Shi-cheng |
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| Affiliation: | (1) School of Mechanical and Electrical Engineering, Harbin Engineering University, 150001 Harbin, China;(2) National Key Laboratory for Remanufacturing, 100072 Beijing, China |
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| Abstract: | Electro-thermal explosion directional spraying was used to prepare the stellite coating on substrate of the AISI 1045 steel. The morphologies of cross-section and worn scar, porosity, distribution of elements, micro-hardness and wear resistance of the coating were determined by means of SEM, EDAX, micro-hardness tester and sliding wear tester. Because of the compact construction, good bonding and high hardness, the coating is characterized by good wear resistance. The results show that the mainly failure mode of the stellite coating is micro-plowing. Foundation item: Project(2003AA331130) supported by Hi-tech Research and Development Program of China; Project(50235030) supported by the National Natural Science Foundation of China |
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| Keywords: | stellite coating microstructure wear resistance electro-thermal explosion directional spraying |
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