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Erosive wear of potential valve materials for coal-conversion plants
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1994
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Series: Mining Publications
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Description:"The U.S. Bureau of Mines, under contract to the U.S. Department of Energy, investigated the erosive-wear properties of seven commercial alloys with potential applications as valves for coal-conversion plants. A dry particle, jet-erosion apparatus was used to determine the wear of seven materials: 316 and 440-C stainless steels, K-68, K-701, and K-801 cemented tungsten carbides, HC-250 white cast iron, and Haynes 6B. The alumina abrasive entrained in the nitrogen gas jet had particle sizes of 27 or 50 micrometers, the abrasive velocities were 55 to 170 m/s, and the particle impingement angles were 15 deg to 90 deg. The maximum specific wear for ductile materials was found to occur at impingement angles of 15 deg to 30 deg, and the minimum specific wear occurred at 60 deg to 90 deg. For the brittle materials, maximum specific wear occurred at impingement angles of 50 deg to 85 deg and minimum specific wear was at the lowest angles." - NIOSHTIC-2
NIOSHTIC no. 10012267
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Pages in Document:iv, 14 numbered pages
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NIOSHTIC Number:10012267
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Resource Number:RI-9490
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