Abstract
A stable passive film exhibiting good corrosion resistance in a 3.5 wt.% NaCl solution was formed on the surface of pure titanium (Ti) subjected to a surface mechanical attrition treatment (SMAT). The corrosion potential (−0.21 V) of the film was significantly higher than that (−0.92 V) of the untreated sample. Moreover, the corrosion current density was an order of magnitude lower than that of the untreated sample. SMAT resulted in a decrease in the vacancy condensation in the TiO2 film, thereby inhibiting the invasion and diffusion of Cl− in the film.
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This work was financially supported by the Natural Science Foundation of China (Grant Nos. 51665022 and 51601081).
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Fu, T., Wang, X., Liu, J. et al. Characteristics and Corrosion Behavior of Pure Titanium Subjected to Surface Mechanical Attrition. JOM 69, 1844–1847 (2017). https://doi.org/10.1007/s11837-017-2511-7
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DOI: https://doi.org/10.1007/s11837-017-2511-7