Author/Authors :
Zakaria, Boumerzoug LMSM - Departement of Mechanical Engineering - University of Biskra, Biskra, Algeria , Soumia, Hamza Departement of Mechanical Engineering - University of Biskra, Biskra, Algeria , Vincent, Ji University Paris, Paris, France
Abstract :
In this work, the effect of isothermal heat treatments at 300 °C on microstructure evolution after welding by Tungsten Inert Gas (TIG) welding technique of 304L pipeline steel have been studied. Microstructures of the weldments were investigated using scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), and hardness measurements. Microstructural evolution in welded joint was identified. Results indicated that the microstructure of fusion zones exhibited dendritic structure. The applied heat treatments affected the microstructure of the welded joint. However some defects have been observed in weld joint.
Keywords :
TIG Welding , stainless steel 304L , heat treatments , microstructures
