| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating film and its coated part wherein frictional coefficient is decreased and sliding properties are improved without remarkably spoiling wear resistance of a ceramic coating film in sliding under a lubricant. SOLUTION: A compound layer comprising at least one among nitrides, carbonitrides and carbides of at least one element selected from metal elements of IVa, Va and VIa groups in the periodic table and a metal layer containing at least one selected from Al, Zn, W, Fe and Mo are alternately laminated.
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