Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
617056 | Wear | 2015 | 17 Pages |
Abstract
At 400 °C and at 700 °C, all wear rates are levelled to â8Ã10â5 mm3/(Nm) and â2Ã10â5 mm3/(Nm), respectively. An oxide layer grows on the NiCrAlY matrix upon high-temperature exposure, resulting in a tribo-oxidation wear mechanism, which makes the addition of Al2O3 irrelevant. At 700 °C, coatings are further strengthened by partial healing of interlamellar defects and by fine-grained β-NiAl precipitating within the metal matrix.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
G. Bolelli, A. Candeli, L. Lusvarghi, A. Ravaux, K. Cazes, A. Denoirjean, S. Valette, C. Chazelas, E. Meillot, L. Bianchi,