Preparation and characterization of Ca-P coating on AZ31 magnesium alloy

摘要

A Ca-P coating consisting of biodegradableβ-tricalcium phosphate[β-TCP,β-Ca3（PO4）2]accepted for medical application was coated on a biodegradable AZ31 alloy by chemical deposition to improve the corrosion resistance.The good bonding strength of the coating is obtained.The results show that the corrosion potential of the Ca-P coated AZ31 alloy increases significantly,and MG63 cells show good adherence,proliferation and differentiation on the surface of the coated alloy.The Ca-P coating might be an effective way to improve the surface bioactivity of magnesium alloys.