抄録
The purpose of the present study is to develop a novel implant material which has a superior biocompatibilities and high strength by means of a coating technology. In this study, the cold spray technique was selected and used to surface modification method of a titanium alloy for the development of implant material; the pure titanium coating was sprayed on a titanium alloy, Ti-6A1-4V, by means of the cold spray technique. The influences of spray conditions and post-sprayed heat treatments on the mechanical properties of the cold sprayed biomedical coatings were investigated. It was revealed from the experimental results that the cold sprayed biomedical titanium coatings had a low elastic modulus, high adhesion and enough tensile strength after the post-sprayed heat treatment. Most important factor to get the superior biomedical coatings was the post-sprayed heat treatment because the adhesion strength of the coatings could be improved significantly due to the post-sprayed heat treatment.
