Modelling and experimental study on β-phase depletion behaviour of HVOF sprayed free-standing CoNiCrAlY coatings during oxidation
This paper investigates the β-phase depletion behaviour during oxidation of free-standing
CoNiCrAlY (Co–31.7% Ni–20.8% Cr–8.1% Al–0.5% Y, all in wt.%) bond coats prepared by
high velocity oxy-fuel (HVOF) thermal spraying. The microstructure of the coatings was
characterised using scanning electron microscopy with energy dispersive X-ray (EDX)
analysis and electron backscatter diffraction (EBSD). It comprises a two phase structure of
fcc γ-Ni and bcc β-NiAl, with grain sizes varying largely from 0.5 to 2 μm for both phases …
CoNiCrAlY (Co–31.7% Ni–20.8% Cr–8.1% Al–0.5% Y, all in wt.%) bond coats prepared by
high velocity oxy-fuel (HVOF) thermal spraying. The microstructure of the coatings was
characterised using scanning electron microscopy with energy dispersive X-ray (EDX)
analysis and electron backscatter diffraction (EBSD). It comprises a two phase structure of
fcc γ-Ni and bcc β-NiAl, with grain sizes varying largely from 0.5 to 2 μm for both phases …
Modelling and experimental study on?-phase depletion behaviour of HVOF sprayed free-standing CoNiCrAlY coatings during oxidation
H Chen, GA Jackson, KT Voisey… - Surface and … - nottingham-repository.worktribe.com
This paper investigates the β-phase depletion behaviour during oxidation of free-standing
CoNiCrA1Y (Co-31.7% Ni-20.8% Cr-8.1% A1-0.5% Y, all in wt%) bond coats prepared by
high velocity oxy-fuel (HVOF) thermal spraying. The microstructure of the coatings was
characterised using scanning electron microscopy with energy dispersive X-ray (EDX)
analysis and electron backscatter diffraction (EBSD). It comprises a two phase structure of
fcc γ-Ni and bcc β-NiA1, with grain sizes varying largely from 0.5 to 2 μm for both phases …
CoNiCrA1Y (Co-31.7% Ni-20.8% Cr-8.1% A1-0.5% Y, all in wt%) bond coats prepared by
high velocity oxy-fuel (HVOF) thermal spraying. The microstructure of the coatings was
characterised using scanning electron microscopy with energy dispersive X-ray (EDX)
analysis and electron backscatter diffraction (EBSD). It comprises a two phase structure of
fcc γ-Ni and bcc β-NiA1, with grain sizes varying largely from 0.5 to 2 μm for both phases …
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