Abstract
Ti-Nb-Sn alloy was prepared by mechanical alloying and mold sintering process, and the effects of Nb on the microstructure, corrosion behavior and in vitro biocompatibility were investigated. With the increased Nb content, the microstructure was transformed from Widmannstatten to needle-like structure. Moreover, the stable passivation films of TiO2, Nb2O5 and SnO2 were formed on the surface of the alloy in artificial saliva, and the surface wettability was changed from hydrophilic to hydrophobic, which made the corrosion resistance of the alloy was intensified. The increase of Nb content can promote adhesion and proliferation of mouse osteoblasts, and accordingly improve cell vitality.
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