Abstract
The composite journal bearings which have outer layer with high strength and inner layer with high wear resistance can be used as bearing materials in the industrial high-power machine. The bearing prepared by unification forming of two different mixed powders were compacted in the shape of a double-layers cylinder and then it was sintered for various sintering times at 1403K. In this study, the radial crushing strength of the sintered bearing with various mixed powder compositions for an outer layer as back-up material was examined and the friction and wear properties in this bearing also were estimated. The radial crushing strength of sintered bearing with outer layer composition of Fe-Cu-C mixed powder is increases by the addition of phosphorus of less than 1.0 mass%, nevertheless the density of developed sintered composite bearing is low.
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