Institute of Physics of Materials AS CR, v. v. i. > Projects > Creep damage mechanisms in advanced tungsten modified 9%Cr ferritic steel

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Creep damage mechanisms in advanced tungsten modified 9%Cr ferritic steel

Anotace

The advanced tungsten modified 9%Cr ferritic steel (ASTM P92) is a promising material for the next generation of fossil and nuclear power plants. The project aims to investigate the degradation processes during long-term thermal ageing and high-temperature creep in the P92 steel and the influence of damage processes on its creep strength in order to clarify present controversial understanding. To quantify the effect of each damage process on the loss of the creep strength, creep testings in the broad interval of applied stress and testing temperatures are carried out. The creep tests are followed by qualitative and quantitative microstructural and fractographic analyses of the crept specimens.