Journal
CORROSION
Volume 74, Issue 7, Pages 776-787Publisher
NATL ASSOC CORROSION ENG
DOI: 10.5006/2775
Keywords
crack growth rate; creep; stress corrosion cracking; supercritical water; Type 310S stainless steel
Funding
- International Science and Technology Cooperation Program of China [2015DFR60370]
- National Nature Science Foundation of China [51701123]
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Stress corrosion crack (SCC) behavior of Type 310S stainless steel (SS) in supercritical water was evaluated at 400 degrees C to 550 degrees C. Crack growth rates (CGR) were obtained as a function of temperature and corrosion potential. Results show that Type 310S SS exhibits 100% intergranular SCC, and creep plays an important role in the overall growth rate. The SCC CGR increases with temperature between 400 degrees C and 550 degrees C, and is higher at a medium-low corrosion potential (argon deaerated water) than in water with dissolved O-2 or dissolved H-2. A mechanism for SCC of Type 310S SS in supercritical water is proposed to explain the combined effect of SCC and creep.
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