WELDABILITY OF MICROALLOYED HIGH STRENGTH STEELS TStE 420 and S960QL

摘要

The paper presents research of voidability of microalloyed high strength steels TStE 420 and S960QL after weld thermal cycle simulation. Beside mechanical properties hardness and impact strength, the microstructures of characteristic weld thermal cycled structures for both steels are given. The results will contribure to determination of weakest points in Heat Affected Zone of both steels.