Protein induced corrosion of metals in the marine environment
In marine industries, seawater and biofouling organisms such as barnacles can cause corrosion to submerged metal structures due to a variety of corrosion mechanisms. Such corrosion can damage the equipment, which could potentially shorten the lifespan or even result in catastrophic structural failur...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/148968 |
| _version_ | 1811679968350961664 |
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| author | Tan, Andy You Zhang |
| author2 | Ali Gilles Tchenguise Miserez |
| author_facet | Ali Gilles Tchenguise Miserez Tan, Andy You Zhang |
| author_sort | Tan, Andy You Zhang |
| collection | NTU |
| description | In marine industries, seawater and biofouling organisms such as barnacles can cause corrosion to submerged metal structures due to a variety of corrosion mechanisms. Such corrosion can damage the equipment, which could potentially shorten the lifespan or even result in catastrophic structural failure. Barnacles are known to secrete a protein complex, called barnacle cement proteins (BCP), which enable them to adhere to surfaces and hence result in protein induced corrosion (PIC). In this project, the extent of PIC and how the surface roughness of stainless steel affects corrosion will be examined. This report investigates the corrosive effects of one such protein derived from barnacle cement, MrCP20, on AH36 steel, which is commonly used in the marine environment. It was found that MrCP20 adsorption occurs instantaneously and corrosion sites appear within minutes. However significant corrosion only occurred after 2 hours of incubation. It was also found that in some instances, MrCP20 may actually form a protective layer and prevent the metals from corrosion. It was also found that surface roughness may not have a significant effect on the impact of corrosion. Based on these key findings, recommendations for future work that can better shed light onto the PIC process have been proposed. |
| first_indexed | 2024-10-01T03:17:35Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/148968 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:17:35Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1489682021-05-21T11:06:30Z Protein induced corrosion of metals in the marine environment Tan, Andy You Zhang Ali Gilles Tchenguise Miserez School of Materials Science and Engineering ali.miserez@ntu.edu.sg Engineering::Materials In marine industries, seawater and biofouling organisms such as barnacles can cause corrosion to submerged metal structures due to a variety of corrosion mechanisms. Such corrosion can damage the equipment, which could potentially shorten the lifespan or even result in catastrophic structural failure. Barnacles are known to secrete a protein complex, called barnacle cement proteins (BCP), which enable them to adhere to surfaces and hence result in protein induced corrosion (PIC). In this project, the extent of PIC and how the surface roughness of stainless steel affects corrosion will be examined. This report investigates the corrosive effects of one such protein derived from barnacle cement, MrCP20, on AH36 steel, which is commonly used in the marine environment. It was found that MrCP20 adsorption occurs instantaneously and corrosion sites appear within minutes. However significant corrosion only occurred after 2 hours of incubation. It was also found that in some instances, MrCP20 may actually form a protective layer and prevent the metals from corrosion. It was also found that surface roughness may not have a significant effect on the impact of corrosion. Based on these key findings, recommendations for future work that can better shed light onto the PIC process have been proposed. Bachelor of Engineering (Materials Engineering) 2021-05-21T11:06:30Z 2021-05-21T11:06:30Z 2021 Final Year Project (FYP) Tan, A. Y. Z. (2021). Protein induced corrosion of metals in the marine environment. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/148968 https://hdl.handle.net/10356/148968 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Materials Tan, Andy You Zhang Protein induced corrosion of metals in the marine environment |
| title | Protein induced corrosion of metals in the marine environment |
| title_full | Protein induced corrosion of metals in the marine environment |
| title_fullStr | Protein induced corrosion of metals in the marine environment |
| title_full_unstemmed | Protein induced corrosion of metals in the marine environment |
| title_short | Protein induced corrosion of metals in the marine environment |
| title_sort | protein induced corrosion of metals in the marine environment |
| topic | Engineering::Materials |
| url | https://hdl.handle.net/10356/148968 |
| work_keys_str_mv | AT tanandyyouzhang proteininducedcorrosionofmetalsinthemarineenvironment |