The development of materials for high-temperature applications, such as the hot parts of aircraft engines, is important for sustainable travel or energy production. The overall resistance of a component is determined by its microstructural characteristics; therefore, understanding the microstructural changes that occur during thermomechanical loading is essential for further development. 
The main goal of the diploma thesis is to compare results obtained by several techniques (electron channelling contrast imaging, electron backscattered diffraction, kernel average misorientation, and low-voltage transmission electron microscopy) and to analyse the influence of the acceleration voltage on the measured data.