Power plant components in Integrated Gasification Combined Cycles (IGCC) and
gas turbines work under conditions of high pressure, high temperature and flowing gas with
high levels of CO2. The corrosion process occurring under such service conditions of modern
power plants is different from that under current conditions with air combustion. The effect of
pressure and chromium content on the corrosion reaction of steels at a constant temperature
of 600°C (873K) is discussed in the present paper. The flowing gas is simulated as a mixture
of 30% H2O und 70% CO2. The influence of chromium contents of 1, 2, 9 and 11% were
experimentally observed.