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T, Rakesh
- Feasibility study on MoCoCrSi/WC-Co cladding developed on austenitic stainless steel using microwave hybrid heating
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Authors
Affiliations
1 Department of Mechanical Engineering, Malnad College of Engineering, Hassan 573202, IN
2 Department of Mechanical Engineering, RV Institute of Technology and Management, Bengaluru 560076, IN
1 Department of Mechanical Engineering, Malnad College of Engineering, Hassan 573202, IN
2 Department of Mechanical Engineering, RV Institute of Technology and Management, Bengaluru 560076, IN
Source
Journal of Mines, Metals and Fuels, Vol 69, No 12A (2021), Pagination: 260-264Abstract
Partial dilution of clad powder and the substrate to form a new protective layer is called as cladding. The present article focuses on development of a novel surface modification technique for better resistance to wear/erosion using microwaves as the source of heat. Clads of MoCoCrSi/ WC-Co were produced on austenitic stainless steel (SS-316) using microwave irradiation techniques. Composite clads were established by irradiating microwaves at 2.45 GHz frequency and power of 900W using a domestic microwave applicator for a duration of 30 minutes. Characterization of the developed clads were performed in the form of metallographic(microstructure) and mechanical(hardness) tests. Careful observation of the microstructures revealed uniform grain structures, free from defects on the surface of the cladded substrate. Further, no significant cracks were to be found on the transverse section of the clad characterizing good bonding between clad particles and substrate. The developed clad demonstrates significantly higher hardness than the substrate.Keywords
Hybrid heating; microwave; surface modification; composite claddings.
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