| 摘要 |
According to an embodiment of the present invention, an improved sliding member is provided that has a sliding surface and a deposition layer formed on the sliding surface by means of an ion-plating method, where the deposition layer is composed mainly of chrome nitride, including CrN. The improvement comprises the CrN of the chrome nitride which has a preferred orientation of the plane {100}, where the deposition layer contains boron at a containing ratio not less than 0.05 and not more than 20 weight percent. According to another embodiment of the present invention, an improved sliding member is provided that has a sliding surface and a deposition layer formed on the sliding surface by means of an ion-plating method, where the deposition layer is composed mainly of chrome nitride, including CrN. The improvement comprises the CrN of the chrome nitride which has a preferred orientation of the plane {100}, where the deposition layer contains boron, at a containing ratio not less than 0.05 and not more than 20 weight percent, and either one or both of oxygen and carbon, at a containing ratio of the either one of oxygen and carbon, or a total containing ratio of both oxygen and carbon, not more than 15 weight percent, respectively. With an improved sliding member obtained by the arrangement as above, according to the present invention, enhanced abrasion resistance and scuffing resistance are obtained that are better than those of the conventional sliding members having an ion-plating deposition layer not containing boron, with the CrN having the preferred orientation of the plane {100}, while maintaining the peeling resistance as excellent as with conventional sliding members having an ion-plating deposition layer not containing boron, with the CrN having the preferred orientation of the plane {100}.
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