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- Title
Study on abnormal hot corrosion behavior of nickel-based single-crystal superalloy at 900 °C after drilling.
- Authors
Chen, Zehao; Wu, Mengmeng; Pei, Yanling; Li, Shusuo; Gong, Shengkai
- Abstract
The hot corrosion behavior of nickel-based single-crystal superalloy after drilling is investigated at 900 °C. The characteristics of hot corrosion after drilling which are different from normal hot corrosion are reflected in the formation of a more stable oxide layer and less severe spallation. The change of microstructure around the hole is the main reason for the formation of a stable oxide layer during hot corrosion by changing the diffusion process of alloying elements. Subsequently, the formation of a stable oxide layer can reduce the effect of spalling by optimizing surface stress.
- Subjects
HEAT resistant alloys; SPALLING wear; SPALLATION (Nuclear physics); SCATTERING (Physics); DIFFUSION processes
- Publication
NPJ Materials Degradation, 2021, Vol 5, Issue 1, p1
- ISSN
2397-2106
- Publication type
Article
- DOI
10.1038/s41529-021-00167-4