engleski

The microstructure notch toughness relationship of microalloyed steels

The paper seeks to solve the problem of relationship between notch toughness in the upper-transition area and the microstructure of microalloyed steels with Re of <600MPa. The parametric equation KCV100%=f (characteristics of microstructural) was derived on the basis of the knowledge from literature on relationships between the structure and transition temperature and between individual brittle fracture characteristics in the transition area in the impact bend test. This equation was experimentaly verifed on three steels with re=345-555MPa and it can be assumed as perspective.

microalloyed steels ; microstructure ; notch toughness

nije evidentirano