saji, fahimeh, mobasherpour, iman, nikzad, liela (2022). Improving the Biocompatibility Performance of Ti-6Al-4V Alloy with Bi Phasic Calcium Phosphate Gradient Coating By Plasma Spray Method. *Advanced Processes in Materials Engineering*, 15(4), 31-39. 10.30495/apme.2021.1925953.2035