| 摘要 |
PURPOSE:To provide superior wear resistance and seizure resistance, by providing a sliding member consisting of the primary and the secondary member abutting each other and relatively sliding, by constituting the primary member of a fiber-reinforced metallic composite material in which fibrous reinforcement appears at the sliding surface and which has recessed parts in the matrix surface of the sliding surface, and by constituting the secondary member of a plated metal. CONSTITUTION:The sliding member is composed of the primary and the secondary member abutting each other and relatively sliding. The sliding part of the primary member to the secondary member is constituted of the fiber-reinforced metallic composite material having alumina-silica fibers 1 as fibrous reinforcement and, as a matrix, an Al alloy 2. The above sliding surface 4 is subjected to electrolytical etching and a part of fibrous reinforcement is allowed to appear at the sliding surface, so that recessed parts 3 are formed in the matrix surface at the spaces among the exposed fibrous reinforcement. The average depth Di of the parts 3 is regulated to >=1.5mu and also the ratio of average depth Di to pit diameter Wi is regulated to >=0.01. Moreover, the sliding surface part of the secondary member to the primary member is plated with iron-phosphorus alloy.
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