Dry Machining Using CrAlYN Coated Carbides

The current study discusses the influence of yttrium content of magnetron sputtered chromium-based coatings on the wear behavior in dry machining of steel and aluminum alloy. Both tribological tests and practical wear experiments in dry turning and drilling were performed. The characterization of the coatings includes the measurement of thickness and hardness, as well as a detailed analysis of the coating composition. Dry turning and drilling operations were performed in order to evaluate the wear resistance of CrxAlyN and CrxAlyYzN during practical applications.