Advanced deposition characteristics of kinetic sprayed bronze/diamond composite by tailoring feedstock properties |
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| Authors: | Hyuntaek Na Gyuyeol Bae Sumin Shin S. Kumar Hyungjun Kim Changhee Lee |
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| Affiliation: | 1. Department of Mechanical Engineering, Sambhram Institute of Technology, Bengaluru, Karnataka, 560 097, India;1. Université Bourgogne Franche-Comté, UTBM, LERMPS, 90010 Belfort, France;2. LEME. Université Paris Ouest Nanterre la Défense, 92410 Ville d''Avray, France;3. Key Laboratory of Marine Materials and Related Technologies, Key Laboratory of Marine Materials and Protective Technologies of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;1. Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada;2. InnoTech Alberta, Edmonton, Alberta T6N 1E4, Canada |
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| Abstract: | In this study, the effect of protective nickel film on diamond particles was studied with the goal of preventing fracture and obtaining a uniform diamond distribution in a bronze/diamond composite coating during kinetic spraying. Two types of bronze/diamond composite were deposited on aluminum substrate. For comparison with experimental results, the impact behavior between diamonds in the gas flow field was simulated by finite element analysis (using ABAQUS/Explicit 6.7-2). Size distribution and deposition efficiency of the diamond particles in the composite coatings were analyzed through scanning electron microscopy and image analysis methods. Diamond fracturing was avoided because the impact energy was mostly absorbed by the outer protective nickel film on the diamond particle during impact. The uniform distribution and deposition efficiency of diamond particles in the coating layer could also be achieved by tailoring the physical properties (density, size, etc.) of the feedstock. |
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