Vikash Kumar

Jadavpur University | JU · Department of Mechanical Engineering

A successful quaternary electroless coating of Ni–W–Ce–P on a low carbon steel substrate with superior mechanical and microstructural properties has been deposited. The surface morphology, elemental composition, and coating structure were explored by field emission scanning electron microscopy combined with energy-dispersive X-ray spectrometry and...

Exhaust fans and manifolds, valve and pump seats, connecting rods etc. are coated with Ni-5Mo-5Al powder for service temperature up to 650 °C. Till date, it has been coated on structural steels etc. substrate mostly using plasma spray and High-Velocity Oxy-Fuel (HVOF) spraying. However, a few pioneering works, reported cladding by melt and depositi...

Direct metal laser deposition of hardfacing alloys on engineering components can improve their life significantly. This work explores the role of laser power and scanning speed on the deposition geometry of Ni5Mo5Al. Variation of cross-sectional morphologies of overlapped deposition tracks with varying process parameters was examined. The results i...

Direct laser deposition of hardfacing alloys on engineering components can improve their life significantly. This work explores mechanical and microstructural properties of direct laser deposited Ni5Mo5Al for such potential applications. Variation of cross-sectional morphologies of overlapped deposition tracks with varying process parameters was ex...