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

Figure 5

Image analysis of the coatings Co₃₂Ni₂₁Cr₈Al_0.5Y, showing (a) original image, (b) content of oxides and pores, (c) porosity, and (d) unmelted particles.

(a)

(b)

(c)

(d)