Calculation Method for thickness of inner oxide layer of martensitic heat-resistant steel in steam environment
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United States of America Patent
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Oct 26, 2023
app pub date -
Jun 15, 2023
filing date -
Apr 20, 2023
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The present application discloses a calculation method for thickness of inner oxide layer of a martensitic heat-resistant steel in steam environment. The calculation method takes into account the steam temperature, the steam pressure and the operation time, which are the three factors that have significant effects on the thickness of the oxide layer, and with the help of a metal oxidation kinetic model, the formula is mathematically modified by combining a large number of actual operation and laboratory simulation experimental data of the power plant. A calculation method for thickness of inner oxide layer of 9% Cr martensitic heat-resistant steel in steam environment is obtained by using linear fitting and curve fitting, etc.
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