Characterization of Friction-Surfaced SS316 Overlaid on Medium-Carbon Steel

In this paper, a study has been done on the solid-state coating of SS316 over medium-carbon steel EN8. The objective is to determine the characterization of friction-surfaced joints with process parameters such as axial load, traverse speed and rotational speed. Coating thickness and coating width depend on the traverse and rotational speeds, which decrease with the increase in axial load. A maximum bending strength of 134 MPa was obtained for the sample with highest axial load of 9 kN, rotational speed of 1600 rpm and traverse speed of 2.2 mm/s. The XRD peaks of SS316-coated EN08 sample show a considerable shift, indicating martensite (α′) formation. It has been observed that strong bonding could be obtained under specific conditions, as the substrate bonding materials are metallurgically inconsistent and have a tendency to form brittle compounds. External degradation occurred when the specimen was exposed to elevated temperatures. The results were analyzed statistically. To access its potential application corrosion studies were carried out, which shows SS316 overlaid EN8 exhibits better corrosion resistance than the substrate EN8 sample.