Cyclic oxidation behavior of electron beam physical vapor deposition NiAlHf and NiAlHfCrSi coatings at 1150 °C
| Autor: | Hong-Hai Song, Si-Jia Liang, Lei Zheng, Hongbo Guo |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
020209 energy Metallurgy Metals and Alloys 02 engineering and technology Temperature cycling engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Electron beam physical vapor deposition Grain size Coating Metallic materials 0202 electrical engineering electronic engineering information engineering Materials Chemistry engineering Spallation Physical and Theoretical Chemistry Composite material 0210 nano-technology Electron backscatter diffraction |
| Zdroj: | Rare Metals. 42:1408-1413 |
| ISSN: | 1867-7185 1001-0521 |
| DOI: | 10.1007/s12598-016-0839-8 |
| Popis: | NiAlHf and NiAlHfCrSi coatings were deposited by electron beam physical vapor deposition (EB-PVD). The grain size and orientation of NiAlHf and NiAlHfCrSi coatings were determined by electron backscatter diffraction (EBSD). The NiAlHf coating reveals a more uniform grain size compared to NiAlHfCrSi coating, while the NiAlHfCrSi coating shows a preferential orientation which is parallel to the normal direction of the surface of the coating. The cyclic oxidation behavior of NiAlHf and NiAlHfCrSi coatings at 1150 °C was investigated. Compared to NiAlHf coating, the NiAlHfCrSi coating shows improved resistance to cyclic oxidation and scale spallation. The effect of grain size and orientation on the cyclic oxidation behavior of NiAlHf and NiAlHfCrSi coatings were investigated at 1150 °C. |
| Databáze: | OpenAIRE |
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