Abstract
Ti0.5Al0.5N coatings were deposited on TC11 (Ti-6.5Al-3.5Mo-1.5Zr-0.3Si) and silicon substrates using a cathode arc ion-plating system. The microstructure, composition, phase structure, and oxidation-resistance of the alloys and nitride coatings were investigated by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, Auger electron spectroscopy, and thermal analyzer. The results show that the oxidation resistance of the titanium alloy is relatively limited; the compound structures of Ti mixed with Al oxides are formed during the heating process. The phases of the Ti0.5Al0.5N coatings are composed of a TiN solid solution phase. The oxidation kinetics obeys the parabolic law. During the oxidation process, the selective oxidation of Al occurs, thus protecting the underlying coating and substrate.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Xu G.D. and Wang F.E., Development and application on high-temperature Ti-based alloys, Chin. J. Rare Met. (in Chinese), 2008, 32(6): 774.
Gurrappa I. and Gogia A.K., High performance coatings for titanium alloys to protect against oxidation, Surf. Coat. Technol., 2001, 139: 216.
Zhao Y.G., Zhou W., and Qin Q.D., Effect of pre-oxidation on the properties of aluminide coating layers formed on Ti alloys, J. Alloys Compd., 2005, 391: 136.
Gurappa I., Protection of titanium alloy components against high temperature, Mater. Sci. Eng. A., 2003, 356: 372.
Liu H.P., Hao S.S., Wang X.H., and Feng Z.X., Interaction of a near-α type titanium alloy with NiCrAlY protection coating at high temperatures, Scripta Mater., 1998, 39: 1443.
Jindal P.C., Santhanam A.T., Schleinkofer U., and Shuster A.F., Performance of PVD TiN, TiCN, and TiAlN carbide tools in turning, Int. J. Refract. Met. Hard Mater., 1999, 17: 163.
Harris S.G., Doyle E.D., and Vlasveld A.C., Influence of chromium content on the dry machining performance of cathodic arc evaporated TiAlN coatings, Wear, 2003, 254: 185.
Harris S.G., Doyle E.D., Vlasveld A.C., and Dolder P.J., Dry cutting performance of partially filtered arc deposited titanium aluminium nitride coatings with various metal nitride base coatings, Surf. Coat. Technol., 2001, 146: 305.
Weber F.R., Fontaine F., Scheib M., and Bock W., Cathodic arc evaporation of (Ti,Al)N coatings and (Ti,Al)N/TiN multilayer-coatings—correlation between lifetime of coated cutting tools, structural and mechanical film properties, Surf. Coat. Technol., 2004, 177: 227.
Ru Q., Hu S.J., Huang N.C., Zhao L.Z., Qiu X.L., and Hu X.Q., Properties of TiAlCrN coatings prepared by vacuum cathodic arc ion plating, Rare Met., 2008, 27(3): 251.
Luridiana S. and Miotello A., Spectrophotometric study of oxide growth on arc evaporated TiN and ZrN coatings during hot air oxidation tests, Thin Solid Film, 1996, 290: 289.
Wahlstrom U., Hultman L., and Sundgren J.E., Crystal growth and microstructure of polycrystalline Ti1−x AlxN alloy films deposited by ultra-high-vacuum dual-target magnetron sputtering, Thin Solid Films, 1993, 235: 62.
Zhou M., Makino Y., and Nose M., Phase transition and properties of TiA1N thin films prepared by r.f. plasma assisted magnetron sputtering, Thin Solid Films, 1999, 339: 203.
Ru Q., Hu S.J., Huang N.C., Zhao L.Z., Qiu X.L., and Hu X.Q., Resistance to high-temperature oxidation of arc ion plated TiAIN coating on heat-resisting titanium alloy, Mater. Protect. (in Chinese), 2007, 40(1): 28.
Vaz F. and Rebouta L., Thermal oxidation of Ti1−x AlxN coatings in air, J. Eur. Ceram. Soc., 1997, 17: 1971.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ru, Q., Hu, S. Effects of Ti0.5Al0.5N coatings on the protecting against oxidation for titanium alloys. Rare Metals 29, 154–161 (2010). https://doi.org/10.1007/s12598-010-0027-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12598-010-0027-1