Influencia del tratamiento térmico de revenido en la energía absorbida de un acero ASTM a572 templado desde una temperatura intercrítica de 770 °c

Abstract

A sample of steel ASTM A572 was divided into smaller pieces conforming Charpy Type A impact test specimens, which were subjected to a heat treatment of quenching from intercritical annealing temperature and different tempering times and tempering temperatures below the critical temperature to obtain a steel with Dual Phase structure. An impact test was carried out on the specimens to observe the ductility or fragility of the material. The resulting microstructures were observed with an optical microscope and hardness and microhardness tests were carried out. Finally, the behavior of the material obtained was evaluated and characterized with the mentioned techniques to relate the absorbed energy.