| Title: | The corrosion 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: |  PDF - Presentation file, download (8,12 MB)
MD5: 965DD1A0AD0CD306112827CD94E53A10
 URL - Source URL, visit https://doi.org/10.1016/j.jmrt.2023.10.082
 JPG - Image, download (2,13 MB)
MD5: B76C58FFE2EBD39F0D1AAED129CCB722
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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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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| 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: | Vol. 27 |
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| PID: | 20.500.12556/DiRROS-17190  |
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| UDC: | 543.2 |
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| ISSN on article: | 2214-0697 |
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| DOI: | 10.1016/j.jmrt.2023.10.082 |
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| COBISS.SI-ID: | 169898755 |
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| Copyright: | © 2023 The Author(s). Published by Elsevier B.V. |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 25. 10. 2023;
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| Publication date in DiRROS: | 26.10.2023 |
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| Views: | 1015 |
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| Downloads: | 557 |
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