Impact energy analysis of quenched and tempered fine grain structural steel specimens after weld thermal cycle simulation

Abstract

The paper presents impact energy results of thermal cycle simulated specimens of quenched and tempered fine grain structural steel S960QL. These results are obtained by examining notched Charpy specimens. Upon performed metallographic analysis and measured hardness, total impact energy is separated into ductile and brittle components.

Keywords

• quenched and tempered fine grain structural steel
• welding thermal cycle
• impact energy
• cooling time t_8/5