Parameter Studies on High-Velocity Oxy-Fuel Spraying of CoNiCrAlY Coatings Used in the Aeronautical Industry

Figure 4

Co₃₂Ni₂₁Cr₈Al_0.5Y coating microstructure of a cross-section of different spray distances: (a) 203 mm, (b) 229 mm, (c) 254 mm, (d) 279 mm, (e) 305 mm, and (f) contaminants particles.

(a)

(b)

(c)

(d)

(e)

(f)