Ref.: MmePr07-001
Apresentador: Mohammad Masoumi
Autores (Instituição): Masoumi, M.(Federal University of ABC);
Resumo:
This research explores the development of an advanced microstructure in medium-carbon high-silicon steel grades tailored for heavy-haul rail systems via a novel heat treatment process. The engineered microstructure comprises lower bainite, proeutectoid ferrite, and pearlite, which collectively enhance the steel's mechanical properties, wear resistance, and overall performance. The synergy of these microstructural constituents results in a steel with increased hardness and strength due to the lower bainite, while the proeutectoid ferrite and pearlite ensure energy absorption and maintain ductility for a balanced performance. Experimental findings reveal significant improvements in yield strength, ultimate tensile strength, and hardness, alongside superior wear resistance characterized by reduced mass loss and lower coefficients of friction. This innovative heat treatment offers a cost-effective solution for improving the durability and performance of heavy-haul rail systems, marking a significant contribution to the transportation industry's material science advancements. The study not only demonstrates the potential of this heat treatment to revolutionize rail fabrication but also opens avenues for further research in advanced materials for sustainable and resilient transportation systems.