The Effect of Cu doping on Fatigue Properties of TiZrNbN Coatings


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Aghdam H., KELEŞ A., BARAN Ö., TOTİK Y., EFEOĞLU İ.

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, cilt.13, sa.1, ss.181-189, 2020 (Hakemli Dergi)

Özet


 The fatigue properties are very important for cutting tools due to service life. To improve fatigue properties of cutting tools, transition metal nitrides with soft metal (Cu, Ni etc.) have been coated on cutting tool materials. To investigate Cu effect on fatigue properties, TiZrNbN and Cu doped TiZrNbN coatings were deposited on M2 high speed steel using reactive closed field unbalanced magnetron sputtering (CFUBMS) in bias voltage of -80V, coating pressure of 0.33 Pa and Cu target current of 0.6 A. Microstructure properties of the coatings were determined by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive Spectroscopy (EDS). Mechanical properties of the coatings were examined with microhardness tester and scratch tester. Fatigue properties of the coatings were examined using multi-pass scratch tester. According to the results, the microhardness of Cu doped TiZrNbN is better than TiZrNbN. On the other hand, the adhesion and fatigue properties of TiZrNbN are the highest