Influence of Cr addition on the interface purification of vacuum brazed NiCr-Cr3C2 coatings on single crystal superalloy

In order to improve the high temperature wear- and oxidation resistance of single crystal superalloy, NiCr-Cr3C2 coatings were vacuum brazed on the surface. Different weight ratios of Cr were added into the coatings to control the diffusion of Si and C into the base metal, which would be harmful to...

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Veröffentlicht in:	Surface & coatings technology 2017-09, Vol.325, p.200-209
Hauptverfasser:	Wang, D., Wang, W.Q., Chen, X.G., Chi, C.T., Wang, M.S., Han, X., Xie, Y.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Base metal Catalytic oxidation Chromium Crack propagation Diffusion coatings Epitaxial growth Fatigue failure Fatigue strength High temperature Interface purification Nickel coatings NiCr-Cr3C2 coating Oxidation resistance Precipitates Precipitation Single crystal superalloy Studies Superalloys Thermal fatigue Thermal fatigue cycling Thermal resistance Vacuum brazecoating Wear resistance
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