Evolution of Metallurgical Phases and Its Co-relation with Mechanical Properties and Corrosion Resistance of 22Cr–5Ni–3Mo and 16Cr–10Ni–2Mo Dissimilar Weldments

摘要: 22Cr–5Ni–3Mo is highly sustainable in aggressive environments and also better substitute of 16Cr–10Ni–2Mo austenitic grade, which illustrates the unavoidability dissimilar joint many corrosive for cost effectiveness. The information about welding parameters, microstructure, mechanical properties, texture, corrosion resistance behavior harsh environment weld by common fusion limited. present study addresses welds between stainless steels, employing SMAW process using two different parameters (based on current) investigates microstructural evolution correlated with weldment. studies were done an optical microscope scanning electron microscopy. Mechanical properties are studied terms tensile strength hardness. electrochemical assessments carried out including modified double-loop potentiodynamic reactivation test test. EBSD analysis was to know grain size variation quantitatively metal and/or heat affected zone. Analyzed results showed well-balanced ferrite/austenite amount both high low input. base twin boundaries, whereas banded structure ferrite austenite. revealed that input less growth as compared austenite orientation, because lower misorientation. With increasing input, content region decreases resulting hardness strength. Modified chloride plasticity materials. High helps increase intergranular phase formation.