Investigation on Elevated-Temperature Wear Resistance of Thermal Oxidation Coating on Ti-6Al-4V Alloy

Abstract:

An oxidation coating on Ti-6Al-4V alloy was prepared by thermal oxidation and subsequent vacuum diffusion. The wear performance of the coating at elevated temperature was evaluated on a pin-on-disc high temperature wear tester under 50-300 N at 400°C. The results showed that the hardened coating with a thickness of 250 μm was produced on Ti-6Al-4V alloy. It was found that the elevated-temperature wear resistance of the coating was remarkably improved, compared with uncoated Ti-6Al-4V alloy. The oxidation coating on Ti-6Al-4V alloy presented extremely low wear losses. The excellent wear resistance of the coating could be attributed to high hardness of coating and its strong bond with substrate. Delamination wear was predominant wear mechanism during dry sliding at 400 °C.

• Periodical: Applied Mechanics and Materials (Volume 778)
• Pages: 132-135
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.778.132
• Online since: July 2015
• Authors: Yin Zhou, Qiu Yang Zhang, Feng Wang, Shu Qi Wang*
• Keywords: Diffusion, Elevated-Temperature Wear, Thermal Oxidation, Ti-6Al-4V Alloy

References

[1] H. Margolin, P. Farrar, The physical metallurgy of titanium alloys, Ocean Engng. 1 (1969) 329-334.

[2] K.G. Budinski, Tribological properties of titanium alloys, Wear. 151 (1991) 203-217.

DOI: 10.1016/0043-1648(91)90249-t

[3] S. Yerramareddy, S. Bahadur, The effect of laser surface treatments on the tribological behavior of Ti-6Al-4V, Wear. 157 (1992) 245-262.

DOI: 10.1016/0043-1648(92)90065-g

[4] A. Giardini-Guidoni, V. Marotta, R. Teghil, Anticorrosion titanium oxide coatings deposited by pulsed laser ablation, Surf. Coat. Technol. 100-101 (1998) 437-439.

DOI: 10.1016/s0257-8972(97)00666-x

[5] N. Martin, D. Baretti, C. Rousselot, The effect of bias power on some properties of titanium and titanium oxide films prepared by r. f. magnetron sputtering, Surf. Coat. Technol. 107 (1998) 172-182.

DOI: 10.1016/s0257-8972(98)00647-1

[6] A. Loinaz, M. Rinner, F. Alonson, Effects of plasma immersion ion implantation of oxygen on mechanical properties and microstructure of Ti6Al4V, Surf. Coat. Technol. 103-104 (1998) 262-267.

DOI: 10.1016/s0257-8972(98)00411-3

[7] H. Dong, X.Y. Li, Oxygen boost diffusion for the deep-case hardening of titanium alloys, Mater. Sci. Eng., A. 280 (2000) 303-310.

DOI: 10.1016/s0921-5093(99)00697-8

[8] H. Güleryüz, H. Çimenoğlu, Effect of thermal oxidation on corrosion and corrosion–wear behaviour of a Ti–6Al–4V alloy, Biomaterials. 25 (2004) 3325-3333.

DOI: 10.1016/j.biomaterials.2003.10.009

[9] P.A. Dearnley, K.L. Dahm, H. Çimenoğlu, The corrosion–wear behaviour of thermally oxidised CP-Ti and Ti–6Al–4V, Wear. 256 (2004) 469-479.

DOI: 10.1016/s0043-1648(03)00557-x

[10] Y. Liu, Z.Y. Ye, D.Z. Yang: Advanced Tribology (2010) 614-617.

[11] A. Pauschitz, Mechanisms of sliding wear of metals and alloys at elevated temperatures, Tribol. Int. 41 (2008) 584-602.

DOI: 10.1016/j.triboint.2007.10.003