| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7895415 | Corrosion Science | 2015 | 11 Pages |
Abstract
The oxidation and interdiffusin behavior of NiCrAlY and sputtered nanocrystalline coatings on a single-crystal superalloy were studied. Results indicated that the superalloy substrate already possessed a high oxidation resistance. However the spallation resistance of oxide scale was very low. NiCrAlY coating enhanced the spallation resistance to some extent of the superalloy substrate at the expense of elevating oxidation rate and occurrence of severe interdiffusion. Sputtered nanocrystalline coating enhanced substantially the spallation resistance of the superalloy substrate meanwhile avoided elements interdiffusion. Its oxidation rate was lower than the superalloy substrate at 1000 °C but a little higher at 1100 °C.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jinlong Wang, Minghui Chen, Lanlan Yang, Shenglong Zhu, Fuhui Wang,