Experimental Investigations on Application of Cuprous oxide Coating on Gear Teeth for Delaying Pitting Formation

By the reference of different Literatures, they reported various types of failure of gear teeth from Strength considerations, Wear Considerations, Pitting Considerations etc. Vast data is reported in the literature to prevent such failures. Through enough research work was reported with regard to failures from strength and wear Considerations, failure against pitting is not considered in detail. The surface durability of gear tooth is closely related to its ability to resist pitting. A few methods including suitable additives in the gear box lubrication oil were reported in literature. These methods have worked well to some extent on pitting delay, but till date a comprehensive method to avoid or delay pitting initiation is not arrived at by researchers. Discrete references were reported in Literature on application coatings on gear teeth for protecting the teeth from pitting. However an in-depth study in this direction is yet to be taken up by researchers. An attempt is made in this paper to investigate the effect of applying cuprous oxide coating on gear teeth for delaying pitting initiation. A Comparison is drawn on pitting initiation without coating and with coating. It has been observed that, there is a slight delay to the extent of 5% in pitting initiation when cuprous oxide nano particle powder is mixed in suitable bonding agents are applied on the gear teeth. The major contribution of present work is to investigate the effect of cuprous oxide coating on gear teeth in delaying pitting initiation. The experimental results have indicated that ,there is nearly 5% delay in pitting initiation, When cuprous oxide coating mixed in suitable bonding agent were applied on gear teeth.