Effects of blasting parameters on removability of residual grit |
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Authors: | T. Maruyama K. Akagi T. Kobayashi |
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Affiliation: | (1) Department of Materials Science and Engineering, Faculty of Engineering, Kansai University, 3-3-35 Yamate-cho, Suita-Shi, 564-8680 Osaka, Japan |
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Abstract: | This article shows the quantitative evaluation of the residual grit on a blasted substrate, and the removability of the residual grit is examined. Carbon steel plates were blasted by white alumina grit with mean diameters of 338 to 1106 μm. The velocity and the number of grit particles were measured during blasting. The residual grit was removed from a substrate surface by the dissolution of the blasted substrate surface. A mixed acid solution was used as the dissolution solution. The residual grit weight was 7 to 17 g/m2. The amount of the residual grit and the penetration depth of the embedded grit increased with increasing grit size. The penetration depth was 5 to 9% of the mean diameter of the grit. The residual grit weight and the penetration depth increased with the increase of the momentum of the grit particle. This article was originally published inBuilding on 100 Years of Success, Proceedings of the 2006 International Thermal Spray Conference (Seattle, WA), May 15–18, 2006, B.R. Marple, M.M. Hyland, Y.-Ch. Lau, R.S. Lima, and J. Voyer, Ed., ASM International, Materials Park, OH, 2006. |
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Keywords: | blasting grit embedment grit removal grit size penetration depth residual grit |
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