公开(公告)号：US20190301529A1

公开(公告)日：2019-10-03

申请号：US16276749

申请日：2019-02-15

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Asako IKEGAMI ,  Takaaki KITAHARA

IPC: F16C33/14 ,  F16C33/12 ,  F16C17/02

Abstract: Provided is a sliding member including: a back-metal layer and a sliding layer including a copper alloy. The back-metal layer includes a hypoeutectoid steel including 0.07 to 0.35 mass % of carbon and has a structure including a ferrite phase and pearlite. The back-metal layer has a high ferrite phase portion at a bonding surface between the back-metal layer and the sliding layer. A volume ratio Pc and a volume ratio Ps satisfy Ps/Pc≤0.4, where the volume ratio Pc is a volume ratio of pearlite in the structure at a center portion in a thickness direction of the back-metal layer, and the volume ratio Ps is a volume ratio of pearlite in the high ferrite phase portion.