Revealing the corrosion mechanism of an Al0.1CoCrFeNi high entropy alloy in high temperature carbon dioxide environment
Journal Article
·
· Corrosion Science
- East China University of Technology, Nanchang (China); Shanghai Jiao Tong Univ. (China)
- Shanghai Jiao Tong Univ. (China)
- East China University of Technology, Nanchang (China)
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Nuclear Power Institute of China, Chengdu (China)
The corrosion behavior of an Al0.1CoCrFeNi HEA in high temperature CO2 at 850 °C for different exposure periods was investigated using different characterization methods. Further, weight gain increased with extended exposure periods, yet it remained lower than most conventional alloys. A double-layer oxide film consisting of Cr2O3 and Al2O3 formed after 100 and 500 h of exposure, while a single layer of Cr2O3 developed after 1000 h of exposure. CoCrFeNi particles with an FCC structure were embedded in the oxide films irrespective of the exposure periods. Moreover, a transition zone containing numerous striped-like Al2O3 oxides along the grain boundaries was developed underneath the oxide films.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- Jiangxi Provincial Natural Science; National Natural Science Foundation of China (NSFC); USDOE
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 2438512
- Report Number(s):
- LA-UR--24-25768
- Journal Information:
- Corrosion Science, Journal Name: Corrosion Science Vol. 239; ISSN 0010-938X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
In-situ visualization of corrosion behavior of Al CoCrFeNi high-entropy alloys during electrochemical polarization
High-throughput synthesis and corrosion behavior of sputter-deposited nanocrystalline Alx(CoCrFeNi)100-x combinatorial high-entropy alloys
Experimental and Computational Investigation of High Entropy Alloys for Elevated-Temperature Applications
Journal Article
·
Tue Jun 23 20:00:00 EDT 2020
· Journal of Alloys and Compounds
·
OSTI ID:1849107
High-throughput synthesis and corrosion behavior of sputter-deposited nanocrystalline Alx(CoCrFeNi)100-x combinatorial high-entropy alloys
Journal Article
·
Wed Sep 30 20:00:00 EDT 2020
· Materials & Design
·
OSTI ID:1785699
Experimental and Computational Investigation of High Entropy Alloys for Elevated-Temperature Applications
Technical Report
·
Sat Jul 30 00:00:00 EDT 2016
·
OSTI ID:1337018