Combating Corrosion Degradation of Turbine Materials Using HVOF Sprayed 25% (Cr₃C₂-25(Ni20Cr)) + NiCrAlY Coating

Figure 2

Optical macrograph of 25% (Cr₃C₂-25(Ni20Cr)) + NiCrAlY coated materials. (a)  Ti-31, (b) Superco-605, and (c) MDN-121. Dimension of the samples: 25 mm × 25 mm.

(a)

(b)

(c)