Microstructure and dislocation arrangements in Sanicro 25 steel fatigued at ambient and elevated temperatures

Microstructure and dislocation structures in high alloyed heat resistant Sanicro 25 austenitic steel cyclically strained in a wide interval of constant strain amplitudes both at room temperature and at temperature of 700 °C were studied by means of transmission electron microscopy (TEM). The spatial arrangement of dislocations was determined using the technique of oriented foils. The character and the Burgers vectors of dislocations were...