Degradace vlastností litých niklových superslitin

Abstract

This thesis deals with the specific characteristic and classification of nickel-based superalloys. It also describes the microstructure and the application of nickel-based superalloys, which are useful especially at high temperatures. An integral part of my thesis is the effect od degradation processes, such as creep at high temperatures, thermal fatigue and high temperature corrosion. The experimental part of the work analyzes the changes in the microstructure of superalloy MAR - M247 after high temperature exposure.