Effect of oxidation resistant Al3Ti coating on tensile properties of a near α-Ti alloy

High temperature oxidation behavior and research status of modifications on improving high temperature oxidation resistance of titanium alloys and titanium aluminides: A review

“…Thermal diffusion with Al can directly increase surface Al content of the alloys, which can promote selective oxidation of Al to form continuous and compact Al 2 O 3 oxide scales on the surface of the alloys. Reference[43][44][45][46][47] used pack thermal diffusion with Al to successfully fabricate surface coatings mainly comprised of TiAl 3 phase on titanium alloys. The surface Al content was up to 60-90 wt.…”

Mechanical properties of near alpha titanium alloys for high-temperature applications - a review

“…For example, Moskalewicz et al (2013) prepared multicomponent coatings of AlCuFe, AlCuFeCr and AlCoFeCr on a near- α Ti alloy, TIMETAL 834, which greatly enhanced the oxidation resistance of the alloys as the alloy coated with AlCoFeCr, recorded 82 per cent weight gain lower than the uncoated sample. Similar coating of Al 3 Ti prepared and deposited on Titan 29 A showed better oxidation protection of the alloy (Parlikar et al , 2013). A 10 μm coating of Ti–Al–Cr–Y on near- α alloy Ti-6242 also provided better oxidation protection (Ebach-Stahl et al , 2013).…”

“…Although near- α Ti alloys have been successfully used for the manufacture of compressor parts in aero-engines, they suffer mechanical functions when exposed to prolonged temperatures above 600°C due to the formation of brittle α envelop on their surfaces (Parlikar et al , 2013; Punnose et al , 2013). Oxidation-resistant coatings are mostly used to protect the components from these effects.…”

Structure and Phase Composition of the Al-Ti System Composites after Heat Treatment

“…One of the effective ways to improve the operational reliability and service life of parts made of titanium alloys operating under wear conditions, including at high temperatures, is to create coatings based on titanium aluminides on their surface [1]. The main technologies for production such coatings are laser synthesis [2,3], sputtering [4][5][6], self-propagating high-temperature synthesis [7], various deposition options [8][9][10][11], surfacing [12], immersion in the melt [13,14]. The main disadvantages of these technological methods should be attributed to the high-energy consumption, the complexity of the equipment, limited possibilities for shaping and redistribution of the finished product.…”