The effect of crystallographic texture as a distinct effective parameter on the biocorrosion performance of Ti6Al4V alloy in PBS solution
| Autor: | Roohollah Jamaati, Mohabbat Amirnejad, Mohammad Rajabi |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Open-circuit voltage Scanning electron microscope 020209 energy General Chemical Engineering 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Microstructure Corrosion Dielectric spectroscopy Phase (matter) 0202 electrical engineering electronic engineering information engineering General Materials Science Texture (crystalline) Composite material 0210 nano-technology Layer (electronics) |
| Zdroj: | Corrosion Science. 179:109100 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2020.109100 |
| Popis: | In this study, different textures of Ti6Al4V alloy at the same microstructure have been developed through heat treatment in the α + β phase region. Scanning electron microscopy and macrotexture analysis were performed on three orthogonal surfaces. The corrosion performance of different surfaces was assessed by open circuit potential, electrochemical impedance spectroscopy, and potentiodynamic polarization in PBS solution. The obtained results showed that the basal texture corrosion rate (3.6 × 10−5 mm/year) was 6 times lower than those of near prismatic texture. SEM investigation of the corroded surfaces showed the formation of a thick crack-free passive layer on the surface having basal texture. |
| Databáze: | OpenAIRE |
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