Vodíkové skrehnutie TRIP ocelí po predchádzajúcej deformácií

Abstract

In the theoretical part of this bachelor thesis, there are described TRIP steels, their production, chemical composition and retained austenite in these steels. Further, hydrogen embrittlement, its types and its action on steels are described in more detail. The practical part is focused on the mechanical properties of TRIP 780 steels. Properties were investigated in simultaneous electrolytic hydrogenation and deformation, while the steel was pre-deformed. Next part of the practical part was a similar test, but the steel was first hydrogenated and subsequently deformed. In the last part of the thesis there is a fractographic analysis of individual samples.