| abstract |
【Task】 Provided are a sliding member with enhanced hardness while suppressing a decrease in durability, a manufacturing method thereof, a power steering device, and a manufacturing method thereof. [Solution] A steel base (3), a granular iron carbide (2) contained in the base, and a metal carbide (1) contained in the base and containing metal and carbon as constituent elements, The volume fraction of iron carbide (2) and metal carbide (1) decreases along the depth direction from the surface to the inside of the substrate, Provided is a sliding member (10a) characterized in that the metal is at least one selected from the group consisting of Ti, V, Nb, Ta, Zr, W, Hf and Mo. [Selection] Figure 1 |