Vliv režimu tepelného zpracování na mechanické vlastnosti a mikrostrukturu olejářských trub

Abstract

This thesis deals with the effects of thermal deformation conditions on the resulting structure and mechanical properties of seamless tubes from grade L80, which were rolled on the Mannesmann pipe rolling mill plant, as TŽ. The investigated parameters of this work were primarily mechanical properties of quenched and tempered tubes, which had to agree with requirements of API 5CT standard. Other studied subjects were analysis of microcleaness, microstructure and fracture analysis.