Vliv vodíku na vlastnosti niklové superslitiny

Abstract

This bachelor work deals with general characteristics of nickel-based superalloys, effect of hydrogen in the nickel superalloys and basic evaluation of mechanical properties after the tensile test. This part is followed by experimental work, which was performed tensile test, metallographic and fractographic evaluation of samples from studied nickel superalloy IN 738LC saturated and non-saturated with hydrogen. Based on the results of the experiment showed that, hydrogen contained in a nickel superalloy IN 738LC has a negative effect on its mechanical properties and leads to change of the fracture characteristic.