Post weld heat treatment of hypereutectoid hadfield steel: Characterization and control of microstructure, phase equilibrium, mechanical properties and fracture mode of welding joint

In this study, the effect of temperature and time of austempering process on microstructural evolutions, phase equilibrium, mechanical properties and fracture mode of weld metal in Hadfield steel joints were evaluated. For this purpose, the austempering process was carried out at 500, 600 and 700 °C for 15 and 30 min on Hadfield steel weld joints, which were prepared using shielded metal arc welding (SMAW) method. Optical Microscope (OM),...