|About this Abstract
||Materials Science & Technology 2019
||Advances in Surface Engineering
||P2-48: Effect of Heat Input on Nano-tribological and Corrosion Properties of Fe-based Amorphous/ Nanocrystalline Coating
||Anil Kumar, Sapan Kumar Nayak, Atanu Banerjee, Tapas Laha
|On-Site Speaker (Planned)
Fe-based amorphous/nanocrystalline composite coatings with amorphous powder (Fe73Cr2Si11B11C3, at. %) were synthesized via atmospheric plasma spraying. The microstructure and the retained amorphous content of the plasma sprayed coatings with respect to different heat input (plasma power) were investigated. The observed results demonstrated that coatings deposited with increasing spraying power exhibited higher nano-hardness and elastic modulus. Moreover, coatings deposited at various powers displayed similar steady-state friction coefficient values (0.43-0.51) and lower penetration depth. To correlate mechanical and tribological properties of the coatings, an analytical model was used which indicated that coating prepared with highest power exhibited significantly high shear strength among the various coatings. Corrosion resistance of the coatings was investigated via standard potentiodynamic polarization test using 3.5 wt.% NaCl solution. The results showed that the plasma sprayed coatings revealed better corrosion resistance than mild steel and galvanized steel which explore the possibility for low-cost surface protective coating.
||Definite: At-meeting proceedings