Aluminide and silicide diffusion coatings by pack cementation for Nb-Ti-Al alloy

Halide activated pack cementation technique was successfully used to elaborate protective coatings, based on silicon- or aluminum-rich intermetallic compounds, for a Nb-Ti-Al alloy. Thermodynamic computations showed that growth mechanism of coating involves different chemical reactions. The substrat...

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Veröffentlicht in:	Surface & coatings technology 2020-05, Vol.389, p.125675, Article 125675
Hauptverfasser:	Chaia, N., Cury, P.L., Rodrigues, G., Coelho, G.C., Nunes, C.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminides Aluminum base alloys Aluminum oxide Chemical reactions Diffusion coatings Halide activated pack cementation High temperature oxidation Intermetallic compounds Niobium Oxidation Oxidation resistance Pack cementation Protective coatings Reaction kinetics Scale (corrosion) Silicides Silicon dioxide Substrates Titanium base alloys
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