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- Title
The oxidation behavior of nickel‐based alloy Inconel 617 in supercritical water.
- Authors
Zhong, Li; Xiao, Bo; Su, Chao; Khan, Hasan I.; Xu, Hong; Zhang, Naiqiang; Zhu, Zhongliang
- Abstract
The corrosion behavior of Inconel 617 in supercritical water has been analyzed at 600°C–650°C and 25 MPa for up to 1000 h. The time dependence of the oxidation rate indicated that the oxidation kinetics follows parabolic law. Many fine oxide crystallites were observed at the surface of Inconel 617 while the thickness of the oxide increased with an increase of exposure temperature and time. The Inconel 617 exhibited excellent oxidation resistance due to the formation of Cr2O3. Furthermore, NiFe2O4, NiCr2O4, and CoO were also detected at 600°C while TiO2, NiFe2O4, and NiCr2O4 were detected at 650°C by using X‐ray diffraction, X‐ray photoelectron spectroscopy, and Raman spectroscopy. The formation mechanism of the oxide film is discussed.
- Subjects
SUPERCRITICAL water; INCONEL; X-ray photoelectron spectroscopy; OXIDATION kinetics; OXIDATION; OXIDE coating
- Publication
Materials & Corrosion / Werkstoffe und Korrosion, 2022, Vol 73, Issue 7, p1132
- ISSN
0947-5117
- Publication type
Article
- DOI
10.1002/maco.202112948