Surface modification for osseointegration of Ti6Al4V ELI using powder mixed sinking EDM

Biomedical implant rejection due to micromotion and inflammation around an leads osteolysis eventually has failure because of poor osseointegration. To enhance osseointegration, the surface modification both at nano micro-scale levels is preferred result in enhanced interface between body tissue implant. The present study focuses on Titanium (?+?) ELI medical grade alloy using powder-mixed electric discharge machining (PMEDM). Pulse current, on/off time, various silicon carbide (SiC) powder concentrations are used as input parameters comprehend desired modifications. Powder concentration considered most important factor control roughness recast layer depth. A significant decrease fracture density observed a 20 g/l SiC particles. Elemental mapping analysis confirmed migration Si generation promising texture chemistry. Oxides carbides enriched improved microhardness re-solidified from 320 HV 727 HV. Surface topology reveals nano-porosity (50–200 nm) which enhances osseointegration absorption proteins especially collagen surface.