Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications
The corrosion behavior of High Entropy Alloy (HEA), wear-resistant cermets, self-fluxing Ni alloy, and Fe-based amorphous alloy coatings were investigated in simulated alkaline high-temperature geothermal environments with/without H2S and CO2 gases for geothermal applications. Phase density of the c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127523008468 |
| _version_ | 1797526252312068096 |
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| author | Gifty Oppong Boakye Erlend Oddvin Straume Baldur Geir Gunnarsson Danyil Kovalov Sigrun Nanna Karlsdottir |
| author_facet | Gifty Oppong Boakye Erlend Oddvin Straume Baldur Geir Gunnarsson Danyil Kovalov Sigrun Nanna Karlsdottir |
| author_sort | Gifty Oppong Boakye |
| collection | DOAJ |
| description | The corrosion behavior of High Entropy Alloy (HEA), wear-resistant cermets, self-fluxing Ni alloy, and Fe-based amorphous alloy coatings were investigated in simulated alkaline high-temperature geothermal environments with/without H2S and CO2 gases for geothermal applications. Phase density of the corrosive fluid (liquid/vapor) influenced the corrosion behavior in the test environments. The NiCrSiBFe self-fluxing coating formed a continuous corrosion surface film while the FeCrMoWMnBCSi amorphous coating was prone to localized corrosion in the liquid phase. The cermet coatings had pores and cracks that led to localized penetration while the CoCrFeNiMo0.85 HEA showed the highest corrosion resistance in all test environments with no localized corrosion damage. |
| first_indexed | 2024-03-10T09:27:34Z |
| format | Article |
| id | doaj.art-6f2e7e3af07745e5b1ad596f4bab6570 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-03-10T09:27:34Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-6f2e7e3af07745e5b1ad596f4bab65702023-11-22T04:46:29ZengElsevierMaterials & Design0264-12752023-11-01235112431Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applicationsGifty Oppong Boakye0Erlend Oddvin Straume1Baldur Geir Gunnarsson2Danyil Kovalov3Sigrun Nanna Karlsdottir4University of Iceland, Faculty of Industrial Eng., Mechanical Eng., and Computer Science, Hjardarhagi 2-6, Reykjavík, IcelandUniversity of Iceland, Faculty of Industrial Eng., Mechanical Eng., and Computer Science, Hjardarhagi 2-6, Reykjavík, IcelandUniversity of Iceland, Faculty of Industrial Eng., Mechanical Eng., and Computer Science, Hjardarhagi 2-6, Reykjavík, Iceland; Tæknisetur ehf, Árleynir 2-8, 112 Reykjavík, IcelandUniversity of Iceland, Faculty of Industrial Eng., Mechanical Eng., and Computer Science, Hjardarhagi 2-6, Reykjavík, IcelandUniversity of Iceland, Faculty of Industrial Eng., Mechanical Eng., and Computer Science, Hjardarhagi 2-6, Reykjavík, Iceland; Corresponding author.The corrosion behavior of High Entropy Alloy (HEA), wear-resistant cermets, self-fluxing Ni alloy, and Fe-based amorphous alloy coatings were investigated in simulated alkaline high-temperature geothermal environments with/without H2S and CO2 gases for geothermal applications. Phase density of the corrosive fluid (liquid/vapor) influenced the corrosion behavior in the test environments. The NiCrSiBFe self-fluxing coating formed a continuous corrosion surface film while the FeCrMoWMnBCSi amorphous coating was prone to localized corrosion in the liquid phase. The cermet coatings had pores and cracks that led to localized penetration while the CoCrFeNiMo0.85 HEA showed the highest corrosion resistance in all test environments with no localized corrosion damage.http://www.sciencedirect.com/science/article/pii/S0264127523008468CO2/H2SHigh temperatureHEAWear resistant coatingsGeothermal |
| spellingShingle | Gifty Oppong Boakye Erlend Oddvin Straume Baldur Geir Gunnarsson Danyil Kovalov Sigrun Nanna Karlsdottir Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications Materials & Design CO2/H2S High temperature HEA Wear resistant coatings Geothermal |
| title | Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications |
| title_full | Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications |
| title_fullStr | Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications |
| title_full_unstemmed | Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications |
| title_short | Corrosion behaviour of HVOF developed Mo-based high entropy alloy coating and selected hard coatings for high temperature geothermal applications |
| title_sort | corrosion behaviour of hvof developed mo based high entropy alloy coating and selected hard coatings for high temperature geothermal applications |
| topic | CO2/H2S High temperature HEA Wear resistant coatings Geothermal |
| url | http://www.sciencedirect.com/science/article/pii/S0264127523008468 |
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