• Ashwinkumar V Patel

The number of total hip arthroplasties (THA) operations is increasing, reaching more than one million procedures worldwide per year. The advent of porous coatings for joint replacement prostheses has proven to be a remarkable innovation in the field of orthopedics. These coatings allow for biologic fixation of implants to host bone via ingrowth into the integrated porous structure. The ability of bone to remodel around cementless prostheses may attribute to enhance long-term success with these components. The impetus to develop porous materials initially arose from concerns regarding late aseptic loosening found with cemented hip replacements. Porous metallic coatings on cementless femoral stem for improved osseointegration have gained momentum since last two decades. In this research twin wire arc spraying technique is used with argon as inert gas to obtain porosity in the range of 30 % - 40 % which is suitable for faster osseointegration. The optimum process parameters i.e. power, stand-off distance and wire feed rate are obtained using response surface methodology technique.

Twin-wire electric arc spraying, porosity, power, stand-off distance, wire feed rate, response surface methodology

"Influences of inert gas electric arc spraying parameters on the porosity of Cp Ti coating on Titanium alloy (Ti-6Al-4V) using response surface methodology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 3, page no.785-799, March-2017, Available :http://www.jetir.org/papers/JETIR1703133.pdf

"Influences of inert gas electric arc spraying parameters on the porosity of Cp Ti coating on Titanium alloy (Ti-6Al-4V) using response surface methodology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 3, page no. pp785-799, March-2017, Available at : http://www.jetir.org/papers/JETIR1703133.pdf