Plated Member And Manufacturing Method Thereof

Abstract: This plated member has a plating film, which contains at least chromium, carbon and oxygen, while having chromium that is precipitated from a trivalent chromium bath as a main component, on the outer surface; the plating film contains 60 at% to 80 at% of chromium and 16.5 at% to 30 at% of carbon; the indentation hardness of the outer surface is 7 GPa or more; and the crystallinity, which is calculated from the peak integrated intensity ratio of the measurement values in the X-ray diffractometry and formula (1), is 4% or less. Formula (1): Crystallinity (peak integrated intensity ratio) = ((crystalline)/(crystalline + amorphous)) × 100% Meanwhile, the indentation hardness is the measurement value of instrumented indentation hardness obtained by a nanoindentation method; and the integrated intensity ratio of formula (1) is a value obtained by XRD analysis wherein 2? is 30° to 60°, the half width of crystalline is less than 3, and the half width of amorphous is 3 or more.

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