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

Figure 9

X-ray diffraction patterns. (a) Uncoated alloys, (b) coated 25% (Cr₃C₂-25(Ni20Cr))+NiCrAlY, coated Ti-31, Superco-605, and MDN-121 subjected to hot corrosion in Na₂SO₄-50%V₂O₅ for 50 cycles at 800°C.

(a)

(b)