Influence of torch oscillation on the microstructure of Colmonoy 6 overlay deposition on SS304 substrate with PTA welding process

Colmonoy 6 alloy has been regarded as an efficient overlay material for various grades of substrate materials. The PTAW process emerged a very useful to deposit such materials effectively. Torch oscillation may become parameter achieve desired microstructure due its significant advantage over liner torch movement faster cooling the weld pool. Proposed work aims analyse influence on surface SS304 substrate. structure deposited with shows increase in Cr concentration δ-Cr 7 C 3 , θ-(Cr, Fe) and μ-Cr 23 phases upon characterization by SEM EDS XRD. This decreases solidification temperature Ni-based soft matrix which provides higher hardness coating. These outcomes can also come handy other control their metallurgical characteristics