Formation of silicide coatings on the surface of a TiAl-based alloy and improvement in oxidation resistance

Microstructure evolution and oxidation resistance of silicon-aluminizing coating on γ-TiAl alloy

“…Thus, taking into account the favorable effect of both elemental Al and Si on the improvement in the oxidation resistance of ␥-TiAl, co-deposition of Al and Si to form oxidation-resistant coatings might be a good choice. Several researches had investigated on the co-deposition of Al and Si on ␥-TiAl alloy such as preparation of Al-Si diffusion coating by Arc-PVD by Swadzba [23,24], pack cementation by Al and Si by Xiang [25,26], and liquid-phase siliconizing by Al-Si alloys by Xiong [27][28][29]. The results showed that the Al-Si diffusion coating could improve the oxidation resistance of the bare alloy significantly.…”

Oxidation protection of commercial-purity titanium by Na2O–CaO–SiO2 and Na2O–CaO–Al2O3–SiO2 glass–ceramic coatings

“…For example, protection coatings were deposited on commercialpurity titanium and TiAl-based alloy by hot-dip aluminizing [2,3,5]. Ti-Cr-Al coatings were prepared on TiAl alloys by magnetron sputtering [6]; other protective coatings such as Ti 5 Si 3 /γ/TiSi composite coatings on γ-TiAl intermetallic alloy by laser cladding [7], Al-Si coatings on Ti-6Al-4V by vacuum fusing method [8,9] were also successfully produced on titanium and titanium alloys.…”

Microstructural Characterization of Several Coatings Deposited on Tialnb Intermetallic Alloy/ Charakterystyka Mikrostruktury Wybranych Warstw Wytworzonych Na Podłożu >Stopu Tytanu Na Osnowie Fazy Międzymetalicznej Tialnb

“…Oxidation products are aluminium, titanium and silicone oxides where the content ratio equals 1:2:7 [20]. Trial forming of protective coatings on the γ titanium alloys (TiAl) base in liquid alloy Al.-Si was carried out [21]. There were used sub-eutectic siluminum (10% wt.…”