Publisher： John Wiley & Sons Inc
E-ISSN： 1521-4176|66|12|1430-1434
ISSN： 0947-5117
Source： MATERIALS AND CORROSION/WERKSTOFFE UND KORROSION, Vol.66, Iss.12, 2015-12, pp. : 1430-1434
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Abstract
Hydrogen evolution and corrosion rates for an Alloy 800H flow‐through reactor operating under supercritical water conditions were determined. Experiments were performed in the temperature range of 650 to 750 °C both with deoxygenated feed water, with an O2 concentration of less than 10 μg L−1 (ppb), and with a high oxygen concentration of around 20 mg L−1 (ppm). Effective rate constants for hydrogen evolution during the corrosion of an Alloy 800H were calculated to be 2.52×10−11, 2.88×10−11 and 4.30×10−11 mol cm−2 s−1, for the reactor temperatures of 650, 700 and 750 °C, respectively.
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