期刊
CORROSION SCIENCE
卷 53, 期 2, 页码 703-711出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2010.10.021
关键词
Thermodynamic diagrams; Exfoliation; Oxidation; Kinetic parameters
资金
- Idaho National Laboratory as part of the Department of Energy Generation IV Initiative
The effect of testing conditions (temperature, time, and oxygen content) and material's microstructure (the as-received and the grain boundary engineered conditions) on the corrosion behavior of alloy 800H in high-temperature pressurized water was studied using a variety of characterization techniques. Oxidation was observed as the primary corrosion behavior on the samples. Oxide exfoliation was significantly mitigated on the grain boundary engineered samples compared to the as-received ones. The oxide formation, including some mushroom-shaped oxidation, is predicted via a combination of thermodynamics and kinetics influenced by the preferential diffusion of specific species using short-cut diffusion paths. (C) 2010 Elsevier Ltd. All rights reserved.
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