Characteristics and Corrosion Behavior of Pure Titanium Subjected to Surface Mechanical Attrition
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.
- Publication:
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JOM - Journal of the Minerals, Metals and Materials Society
- Pub Date:
- October 2017
- DOI:
- 10.1007/s11837-017-2511-7
- Bibcode:
- 2017JOM....69j1844F