Abstract:
Disclosed is a sliding member having a bearing alloy layer, an intermediate layer of Ni or a Ni alloy formed on the bearing alloy layer, and an overlay layer of a Sn alloy containing Cu formed on the intermediate layer. There exist SnnullCu compounds in the overlay layer, which protrudently extend from the intermediate layer. The hard SnnullCu compounds contribute to the overlay layer in improving fatigue resistance property. A soft Sn matrix being rich in an outer surface region of the overlay layer is responsible for keeping good conformability to have excellent anti-seizure property.
Abstract:
A sliding member has a sliding alloy layer, an intermediate layer of Ni or a Ni alloy formed on the sliding alloy layer, and a soft layer of Sn or a Sn alloy formed on the intermediate layer. A recess is formed on the sliding side surface of the sliding alloy layer. The intermediate layer is formed on the inner surface of the recess. The sliding member is subjected to a heat treatment, whereby there are formed intermetallic compounds in the soft layer, which extend protrudently from the intermediate layer.
Abstract:
A copper-based sliding material produced by sintering, comprising at least two phases of copper and/or copper alloys which phases have hardness levels different form each other, and hard particles with an average particle size of 0.1 to 10 nullm which are dispersed in at least one phase with the exception of a softest phase in an amount of 0.1 to 10 vol.% of the whole copper-based sliding material, said sliding material satisfying (H2/H1)null1.2 in which H1 is the Vickers hardness of the softest phase and in which H2 is the Vickers hardness of a phase hardest in hardness including said hard particles.