Correlation of inclusion characteristics and microstructure with mechanical properties in low carbon steel weldments

This study reveals that the microstructure constituents of the welds (pearlite and ferrite) and inclusions characteristics both are having significant effect on
mechanical properties of the welds. Twenty fluxes were made by agglomeration
technique and were designed using RSM. The optical microscope has been used to see
the size of grains, inclusions type, size, distribution and the pattern of inclusions. The
microstructure also has been correlated with the mechanical properties. The basicity
index of the flux and carbon equivalent of the welds also have been correlated with the
weld microstructure constituents.