| Title: | A nonlinear probabilistic pitting corrosion model of Ni–Ti alloy immersed in shallow seawater |
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| Authors: | ID Ivošević, Špiro (Author)
ID Vastag, Gyöngyi (Author)
ID Kovač, Nataša (Author)
ID Majerič, Peter (Author)
ID Rudolf, Rebeka (Author) |
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| Files: |  micromachines-13-01031-v2.pdf (8,28 MB)
MD5: 5E04AC82AF16260565BBDEC4D3DB5B8C
 https://www.mdpi.com/2072-666X/13/7/1031
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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: | FS - Faculty of Mechanical Engineering
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| Abstract: | The degradation of metal materials in a marine environment represents the consequence
of the electrochemical corrosion of metals under the influence of the environment. The application
of new materials in the maritime industry requires experimental, real-world research on the form
of corrosive damage and the intensity of the corrosion. This paper analyses the pitting corrosion of
a rod-shaped nickel–titanium (Ni–Ti) alloy that was produced by means of the continuous casting
method. In total, three samples were posted in a real seawater environment and analysed after 6,
12, and 18 months. Pits were detected on the Ni–Ti alloy after 18 months of exposure to the marine
environment. The database on pitting corrosion was created by measuring depth in mm, which was
performed by means of a nonlinear method, and by the generation of an artificial database of a total
of 120, gauged in critical pit areas. The data were obtained by the application of a nonlinear model,
and under the assumption that corrosion starts after 12 months of exposure in the corrosive marine
environment. The EDX analysis of the Ni–Ti alloy composition inside the pits and on the edges of the
pits indicated that the corrosion process in the hole of the pit occurs due to the degradation of the Ni. |
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| Keywords: | Ni–Ti alloy, pitting corrosion, seawater, EDX analysis, nonlinear, probabilistic |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 30.05.2022 |
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| Article acceptance date: | 27.06.2022 |
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| Publication date: | 29.06.2022 |
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| Publisher: | MDPI AG |
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| Year of publishing: | 2022 |
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| Number of pages: | 17 str. |
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| Numbering: | Vol. 13, iss. 7 |
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| PID: | 20.500.12556/DKUM-92241  |
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| UDC: | 620.1:669.2/.8 |
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| ISSN on article: | 2072-666X |
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| COBISS.SI-ID: | 113294851 |
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| DOI: | 10.3390/mi13071031 |
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| Copyright: | © 2022 by the authors |
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| Publication date in DKUM: | 24.03.2025 |
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| Views: | 128 |
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| Downloads: | 12 |
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| Metadata: |    |
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| Categories: | Misc.
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