A crack growth rate test on a compact tension specimen of Type 316 (UNS S31600) stainless steel was conducted in pure water under both subcritical and supercritical conditions. The crack growth rate during the test was measured using the reversed direct current potential drop technique. Under subcritical conditions, crack growth increased between 288°C and 360°C by a factor of 2. Shifting the water condition from subcritical to supercritical at 400°C significantly reduced the stress corrosion crack growth rate. The crack growth rate was further suppressed by temperature increases to 450°C and 500°C under supercritical conditions. In addition, the effect of dissolved oxygen was to lower the crack growth rate compared to the deaerated case. The drop in crack growth rate with temperature is hypothesized to be due to crack blunting caused by rapid oxidation.
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1 November 2007
Research Article|
November 01 2007
Stress Corrosion Crack Growth in Type 316 Stainless Steel in Supercritical Water
Q.J. Peng;
Q.J. Peng
‡
*Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor, MI 48109. Current address: Fracture and Reliability Research Institute, Tohoku University, Aramaki Aoba 6-6-01, Aoba-ku, Sendai City 980-8579,
Japan
.‡Corresponding author. E-mail: [email protected].
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S. Teysseyre;
S. Teysseyre
**Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor, MI 48109.
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P.L. Andresen;
P.L. Andresen
***GE Global Research Center, 1 Research Circle, Schenectady, NY 12309.
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G.S. Was
G.S. Was
**Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor, MI 48109.
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‡Corresponding author. E-mail: [email protected].
Online ISSN: 1938-159X
Print ISSN: 0010-9312
NACE International
2007
CORROSION (2007) 63 (11): 1033–1041.
Citation
Q.J. Peng, S. Teysseyre, P.L. Andresen, G.S. Was; Stress Corrosion Crack Growth in Type 316 Stainless Steel in Supercritical Water. CORROSION 1 November 2007; 63 (11): 1033–1041. https://doi.org/10.5006/1.3278318
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