| Abstract |
| In the present research work, it was studied whether magnetic approaches can be used for the life prediction evaluation and defect measurement in heat-resistance E911 ferritic steel. Destructive and non-destructive test methods were used. Transmission electron microscopy, coercivity measurements and Barkhausen-noise(BN) measurements were also used. This research aims to clarify the dependency how the thermal fatigue process influences the magnetic properties of E911 steel, which are often used in european power plant applications. It is also attempted to investigate, whether the BN measurement can be applied to monitor the microstructural changes caused by thermal fatigue of the E911 ferritic steel. |
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| Key Words |
| E911 ferritic steel, Barkgausen noise, Thermal fatigue |
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