Patent ID: 9677021
Date: 2017-06-13
CPC Classifications: B22F,B32B,C10M,C22C,C23C,F16C,Y10T

Claim:
1. A sliding member comprising: a back metal layer; and a sliding layer on the back metal layer, the sliding layer including a porous sintered layer and a resin composition, wherein the porous sintered layer includes Ni—P alloy phase and granular steel phase, the granular steel phase being made of a carbon steel including 0.3-1.3 mass % of carbon and having a structure consisting essentially of: ferrite phase; and perlite phase and optionally cementite phase, wherein the Ni—P alloy phase functions as a binder for binding the granular steel phases with one another and/or for binding the granular steel phases with the back metal layer, wherein the granular steel phase includes a low perlite phase part in a surface of a steel phase granule, the low perlite phase part having an area ratio of the perlite phase being not more than 50% of a total area ratio of the perlite phase and, if present, the cementite phase in the structure at a central part of the steel phase granule when observed in a cross-section.