Effect of Tensile Strain Rate on the Hot Ducility of Synthetic Heat-Affected Zones Simulating Weld Reheat Cycles

摘要

The relation between strain rate and properties such as strength, reduction in area, and form of cracking in a variety of high tensile steels is clarified through tensile rupture experiments over a wide range of strain rate during synthetic welding heat cycles and subsequent reheating. The experiments were conducted mainly on 80 kg/mm exp 2 high tensile 8A steel. The ductility, strength, and fractographic behavior of the specimens is reported. (ERA citation 11:013691)