Vliv metalurgických faktorů na rozpustnost vodíku v legovaných konstrukčních ocelích

Abstract

The thesis examines the influence of metallurgical factors on the solubility of hydrogen in alloyed structural steels. The theoretical part of the thesis focuses on the mechanisms of hydrogen dissolution, its mobility and its interaction with defects in the microstructure, as well as the role of hydrogen traps. Additionally, it discusses the factors affecting the mechanical properties of steel in the presence of hydrogen and the mechanisms of its detrimental effects. The experimental part investigates the evolution of hydrogen content and its diffusion behavior in castings under different boundary conditions. Microstructural changes and their impact on the solubility and mobility of hydrogen in chromium-molybdenum structural steel are analyzed which can contribute to optomozing production processes to minimize the risk of hydrogen embrittlement.