| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470171 | Corrosion Science | 2010 | 7 Pages |
Abstract
A gradient NiCoCrAlYSi coating was prepared by a combined method of arc ion plating and subsequent diffusion treatment. The microstructure of the gradient coating was investigated in the as-annealed condition and after oxidation at 1000 °C. During the oxidation, an in situ diffusion barrier composed of Cr(W)-rich σ phases was formed in the interdiffusion zone, resulting in an effective inhibition of inward diffusion of Al. The formation of the in situ diffusion barrier layer is also discussed.
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Physical Sciences and Engineering
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Ceramics and Composites
Authors
S.M. Jiang, C.Z. Xu, H.Q. Li, J. Ma, J. Gong, C. Sun,