A Study on the Effect of Continuous Heating on the Mechanical Properties of Steel at Eutectoid Temperatures

Abstract

Steel is a critical material in modern construction due to its high toughness compared to other materials like iron and concrete. However, its mechanical properties sometimes fall short for certain construction applications. This study focuses on enhancing the toughness and ductility of steel (wide flange profiles/WF) through a continuous heating process at eutectoid temperatures. The heat treatment process, conducted in metallurgical and civil engineering laboratories, aimed to increase the material's resilience without compromising its strength. The study revealed that stress values are inversely proportional to strain, and the ductility of the specimens increases as strain values rise, indicating greater toughness. Additionally, hardness testing showed an inverse relationship with impact resistance. The optimal holding time for the heat treatment was found to be 4 hours, as prolonged exposure (8 hours) led to a decrease in toughness. These findings offer insight into optimizing steel materials for various construction applications.