| Title: | ǂThe ǂcorrosion resistance of dental Ti6Al4V with differing microstructures in oral environments |
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| Authors: | ID Bajt Leban, Mirjam (Author)
ID Kosec, Tadeja (Author)
ID Finšgar, Matjaž (Author) |
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| Files: |  1-s2.0-S2238785423025310-main.pdf (8,12 MB)
MD5: B3DE66FCC2BE461A80D747E394CC6C8B
 https://www.sciencedirect.com/science/article/pii/S2238785423025310?via%3Dihub
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | The impact of the microstructural properties of a Ti6Al4V alloy on its electrochemical properties, as well as the effect of the α- and β-phases present within it, is still unclear. With the introduction of new, emerging technologies, such as selective laser melting and post heat treatments, the effect of the microstructure on an alloy's corrosion properties has become increasingly interesting from a scientific perspective. When these alloys are produced through different methods, despite an identical chemical composition they have diverse microstructures, and consequently display varying resistance to corrosion. In the present research study, Ti–6Al–4V alloy specimens produced by three different processes, leading to the formation of three different microstructures were investigated: heat treated specimen fabricated by selective laser melting, wrought and cast specimens. The impact of the microstructure of these alloys when immersed in artificial saliva was studied through the use of various electrochemical techniques, by microscopical examinations, and time-of-flight secondary ion mass spectrometry. Corrosion properties were investigated by the measurement of open circuit potential, linear polarization, and potentiodynamic curve measurements followed by microscopical examinations, and time-of-flight secondary ion mass spectrometry examination was conducted to reveal spatial distribution of alloying species on oxide film. It was found that the difference between specimens containing an α+β microstructure was small and not dependent on the aspect ratio of the β-phase, alloy grain size, and vanadium partitioning coefficient, but rather on the size, shape, and content of this phase. |
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| Keywords: | Ti6Al4V, dental alloy, microstructure, corrosion resistance, heat treatment, ToF-SIMS |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 16.08.2023 |
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| Article acceptance date: | 09.10.2023 |
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| Publication date: | 12.10.2023 |
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| Publisher: | Brazilian Metallurgical Materials and Mining Association, Elsevier |
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| Year of publishing: | 2023 |
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| Number of pages: | str. 1982-1995 |
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| Numbering: | ǂVol. ǂ27 |
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| PID: | 20.500.12556/DKUM-86249  |
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| UDC: | 543.2 |
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| ISSN on article: | 2214-0697 |
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| COBISS.SI-ID: | 169898755 |
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| DOI: | 10.1016/j.jmrt.2023.10.082 |
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| Publication date in DKUM: | 07.05.2024 |
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| Views: | 198 |
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| Downloads: | 15 |
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| Metadata: |    |
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| Categories: | Misc.
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