Abstract
β-type Ti alloys have drawn extensive attention as potential metallic implants. In this work, the microstructure, corrosion behavior, and wear performance of Ti−17.3 Nb−1.8Fe (TNF) and Ti−22 Nb−30Zr−4Cr (TNZC) biomedical alloys were experimentally investigated, and CP−Ti and Ti6Al4V alloy were also used for comparisons. TNF and TNZC alloys after solution treatment at 1273 K showed a single β phase. It was found that TNF and TNZC alloys revealed better corrosion resistance than CP−Ti and Ti6Al4V alloy in different artificial saliva containing 0.15 wt% NaF with the pH values of 3.9 and 5.7, which could be ascribed to the formation of a double-layer passive film composed of multiple species oxides. Moreover, TNF and TNZC alloys exhibited higher wear resistance compared with CP−Ti and Ti6Al4V alloy, whose wear mechanism was adhesive wear and abrasive wear. The present results show that TNF and TNZC alloys are nice candidates for dental application.
Published Version
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