• Chander Prakash

Among titanium alloy is the best choice to produce orthopedic implants, because of their excellent mechanical properties. The bone ingrowth and osseointegration around the implants depend on the surface chemistry and surface topography. Therefore, implant’s surface needed mechanical treatments to increase its bioactivity and to mimic the surface morphology like natural bone. A novel approach powder mixed electric discharge machining (PMEDM) used for surface modification of Ti alloy in the present research study. A determined concentration of silicon powder is mixed into the dielectric fluid of EDM. The effect of silicon powder with other working parameters like peak current (IP), pulse duration (Ton) and duty cycle (τ) on the surface characteristics of β-phase Ti alloy such as topography, surface roughness, recast layer thickness, micro cracks, and micro-hardness has been investigated. The machined surfaces were characterized using field emission-scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction analysis (XRD) and formation of oxides and carbide phases with micro/sub-micro/nano-scale porous morphology was confirmed.

titanium alloy, surface modification, powder mixed EDM, nanoporous surface, biocompatibility, orthopedic applications

"Potential of silicon powder-mixed electro spark alloying for surface modification of Titanium alloy ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.559-567, March-2019, Available :http://www.jetir.org/papers/JETIREL06083.pdf

"Potential of silicon powder-mixed electro spark alloying for surface modification of Titanium alloy ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp559-567, March-2019, Available at : http://www.jetir.org/papers/JETIREL06083.pdf