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CHROMIUM NITRIDE COATING FILM BY ION PLATING, PROCESS FOR PRODUCING THE SAME, AND PISTON RING FOR INTERNAL COMBUSTION ENGINE
CHROMIUM NITRIDE COATING FILM BY ION PLATING, PROCESS FOR PRODUCING THE SAME, AND PISTON RING FOR INTERNAL COMBUSTION ENGINE
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机译:离子镀铬氮化膜,生产相同膜的工艺以及内燃发动机的活塞环
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摘要
[Task] The chromium nitride ion-plating coating has a property that it is hard but is liable to peel off. Year by year, the required level of wear resistance and scuffing resistance becomes higher in a diesel engine. The property of a coating is improved to enhance the wear resistance and scuffing resistance and also to improve resistance against peeling off.;[Means for Solution] (1) Composition is mainly composed of chromium, nitrogen, and carbon, and the concentration of carbon relative to the total concentration of the main components is from 4 to 8% by weight. (2) The crystal structure is that texture of the CrN (111) plane orientation is from 0.4 to 2.0 in terms of a CrN (111) structural coefficient. (3) Vickers hardness is from Hv 1600 to Hv 2000.
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