Stress Corrosion Crack Growth Behavior of Type 310S Stainless Steel in Supercritical Water

被引:18
|
作者
Chen, Kai [1 ]
Wang, Jiamei [1 ]
Du, Donghai [1 ]
Guo, Xianglong [1 ]
Zhang, Lefu [1 ]
Andresen, Peter L. [2 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China
[2] GE Global Res, 12204 Wildwood Pk Pl, Bakersfield, CA 93311 USA
关键词
crack growth rate; creep; stress corrosion cracking; supercritical water; Type 310S stainless steel; HIGH-TEMPERATURE WATER; AUSTENITIC ALLOYS; AQUEOUS SYSTEMS; NICKEL-ALLOYS; IRON; DIFFUSION; REACTOR; ISSUES; FILMS; SCC;
D O I
10.5006/2775
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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.
引用
收藏
页码:776 / 787
页数:12
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