Optimizing PVD Coating Parameters for Ti6Al4V Alloy

Abstract

Among the materials used most often in engineering are titanium alloys, especially Ti6Al4V. This is because Ti6Al4V has more advantageous characteristics. Due of diminished wear properties, Ti6Al4V's applications have been severely constrained. More focus is being paid to strategies including the creation of novel coatings, the advancement of wear resistance materials and the utilization of nanomaterials to enhance wear resistance. In this study, we aim to simulate the phenomenon of contact that occurs between the tool and workpiece during machining process. The main focus of attention of this simulation is to evaluate the COF (coefficient of friction), wear rate for 5 speed and loading conditions. The experiments were conductedon a PVD coated titanium alloy as TiN, TiAlN, TiN+TiAlN for duration of 5 minutes with loads varying form of 15 to 25 kg in 1 step increment with disk speeds from 400-900 rpm as Taguchi analysis. After the Ti6Al4V substrate had its surface treated, an X-ray fluorescence test technique was used to integrate a thin layer of nickel coating measured between 40 and 42 micrometres. The coating was applied using thin film PVD magnetron sputtering nitride coatings, and the process was carried out in accordance with ASTM standards.