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Effect of Al Content on the High-Temperature Oxidation Resistance and Structure of CrAl Coatings
- Source :
- Coatings; Volume 11; Issue 12; Pages: 1434, Coatings, Vol 11, Iss 1434, p 1434 (2021)
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- The oxidation behaviors of Cr, Cr93.4Al6.6, Cr58.1Al41.9, and Cr34.5Al65.5 coatings, deposited by using multi-arc ion plating technology, at high temperature were studied. The weight gain, oxide thickness, morphology, and phase composition of the coatings before and after oxidation were analyzed in detail. The results show that there is an Al content window available for tuning the oxidation behaviors of the CrAl-based coatings. The Cr93.4Al6.6 coating is considered to be most protective and can effectively improve the high-temperature oxidation resistance of the substrate; whereas, too high an Al content has a harmful effect on the antioxidant properties of the coatings. The oxidation mechanism of Cr and CrAl coatings were also discussed.
- Subjects :
- oxidation resistance
Antioxidant
Materials science
CrAl-based coating
accident-tolerant fuel
Zircaloy
Al content
medicine.medical_treatment
Oxide
Substrate (electronics)
engineering.material
chemistry.chemical_compound
Coating
Materials Chemistry
medicine
Oxidation resistance
Zirconium alloy
Ion plating
Surfaces and Interfaces
Engineering (General). Civil engineering (General)
Surfaces, Coatings and Films
Chemical engineering
chemistry
engineering
TA1-2040
Subjects
Details
- Language :
- English
- ISSN :
- 20796412
- Database :
- OpenAIRE
- Journal :
- Coatings; Volume 11; Issue 12; Pages: 1434
- Accession number :
- edsair.doi.dedup.....e32ddbe33de2c9cf5b4451b443d8fb79
- Full Text :
- https://doi.org/10.3390/coatings11121434