THE INVESTIGATION OF WEAR PROPERTIES OF TIN COATINGS ON THE H13 TOOL STEEL UNDER DIFFERENT DEPOSITION PARAMETERS

Abstract

The present paper reports the influence of working pressure and nitrogen flow rate on the mechanical and wear properties of TiN thin films deposited by DC reactive magnetron sputtering with RF bias voltage. The process of PVD coating is conducted in a nitrogen-argon gaseous mixture at a temperature of 150°C and a DC power of 200W for 90 min. The micro hardness and the wear resistance of the TiN are determined prior to and after the PVD coating. The wear volumes of samples were evaluated using optical profilometre. Worn surfaces were
observed using scanning electron microscopy. It was observed that coated samples showed considerable higher mechanical properties and wear resistance compare to uncoated samples. Abrasive wear mechanism was observed on the surface of worn surfaces. 

Keywords

• PVD
• Wear
• Coating
• Working Pressure
• TiN

THE INVESTIGATION OF WEAR PROPERTIES OF TIN COATINGS ON THE H13 TOOL STEEL UNDER DIFFERENT DEPOSITION PARAMETERS

Öz

The present paper reports the influence of working pressure and nitrogen flow rate on the mechanical and wear properties of TiN thin films deposited by DC reactive magnetron sputtering with RF bias voltage. The process of PVD coating is conducted in a nitrogen-argon gaseous mixture at a temperature of 150°C and a DC power of 200W for 90 min. The micro hardness and the wear resistance of the TiN are determined prior to and after the PVD coating. The wear volumes of samples were evaluated using optical profilometre. Worn surfaces were observed using scanning electron microscopy. It was observed that coated samples showed considerable higher mechanical properties and wear resistance compare to uncoated samples. Abrasive wear mechanism was observed on the surface of worn surfaces.

Anahtar Kelimeler

• PVD
• Wear
• Coating
• Working Pressure
• TiN

Kaynakça

1. [1] Kola, P.V., et al., (1996). Magnetron sputtering of Tin Protective Coatings for Medical Applications. Journal of Materials Processing Technology, 56(1):422-430.
2. [2] Mills, B., (1996). Recent developments in Cutting Tool Materials. Journal of Materials Processing Technology, 56(1):16-23.
3. [3] Bahri, A., et al., (2015). Tribological performance of TiN Coatings Deposited on 304L Stainless Steel Used for Olive-Oil Extraction. Wear, 342:77-84.
4. [4] Pihosh, Y., et al., (2005). Influence of Reacting Nitrogen Gas Consistence on The Properties of TiN Films Prepared by rf. magnetron sputtering. Applied Surface Science, 244(1):244-247.
5. [5] Wrehde, S., et al., (2008). Optical and Chemical characterization of Thin TiNx Films Deposited by DC-magnetron Sputtering. Vacuum, 82(10):1115-1119.
6. [6] Ma, L.W., et al., (2010). Effect of Coating Thickness on the Deformation Mechanisms in PVD TiN-coated Steel. Surface and Coatings Technology, 204(11):1764-1773.
7. [7] Luo, Q., Yang, S., and Cooke, K.E., (2013). Hybrid HIPIMS and DC Magnetron Sputtering Deposition of TiN Coatings: Deposition Rate, Structure and Tribological Properties. Surface and Coatings Technology, 236:3-21.
8. [8] Chavda, M.R., et al., (2016). Tribological Characterization of TiN Coatings Prepared by Sputtering. Procedia Technology, 23:36-41.

9. [9] Shukla, K., et al., (2017). Structural, Mechanical and Corrosion Resistance Properties of Ti/TiN Bilayers Deposited by Magnetron Sputtering on AISI 316L. Surface and Coatings Technology, 324:167-174.
10. [10] Safi, I., (2000). Recent Aspects Concerning DC Reactive Magnetron Sputtering of Thin Films: A Review. Surface and Coatings Technology, 127(2):203-218.