High-temperature oxidation and hot-corrosion behaviour of EB-PVD β-NiAlDy coatings
作者： Hongbo Guo , Dongqing Li , Hui Peng , Yongjing Cui , Shengkai Gong
DOI: 10.1016/J.CORSCI.2010.11.041
关键词:
摘要: Abstract Cr/Dy doped β-NiAl coatings were produced by electron beam physical vapour deposition (EB-PVD). Cyclic oxidation and hot-corrosion behaviour of the was investigated. The addition 0.1 at.% Dy to coating significantly improved cyclic resistance, while 1.3 Cr NiAlDy accelerated scale spallation. Spinels containing Mg, Na Ca pitting resulting from spallation spinels observed on after 200 h at 950 °C. NiAlDyCr effectively suppressed formation spinels.
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