Characterization of microstructures and mechanical properties of Inconel 617/310 stainless steel dissimilar welds

► A fine dendritic structure was seen for the Inconel 617 weld metal. ► A number of cracks were initiated when the 310 SS filler metal was used. ► All welded samples showed ductile fracture. ► The Inconel 617 filler material presents the optimum mechanical properties.