| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1659519 | Surface and Coatings Technology | 2010 | 5 Pages |
Abstract
Commercial CoNiCrAlY powders with the same chemical composition were sprayed by vacuum plasma spraying (VPS), air plasma spraying (APS) and high velocity oxygen fuel (HVOF) onto Hastelloy X superalloy substrates obtaining coatings of comparable thickness. After coating, samples were maintained at 1273Â K in air for different periods up to 3000Â h. Morphological, microstructural and compositional analyses were performed in order to assess the high temperature oxidation resistance provided by the different spraying systems. HVOF technique provided bond coats with higher oxidation resistance compared to APS and VPS.
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Authors
Martina Di Ferdinando, Alessio Fossati, Alessandro Lavacchi, Ugo Bardi, Francesca Borgioli, Claudia Borri, Carlo Giolli, Andrea Scrivani,