|
| Corrosion Behaviors of 5083 Aluminum Alloy in Tropical Marine Environment |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.03.010 |
| KeyWord:reef environment marine zone aluminum alloy marine corrosion pitting corrosion |
| Author | Institution |
| PENG Wen-shan |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Shandong Qingdao , China |
| DUAN Ti-gang |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Shandong Qingdao , China |
| MA Li |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Shandong Qingdao , China |
| TAN Zhen-jiang |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Shandong Qingdao , China |
| XIN Yong-lei |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Shandong Qingdao , China |
| SUN Ming-xian |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Shandong Qingdao , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study the corrosion law of 5083 aluminum alloy in different marine zones in a reef environment. Multi-zone corrosion tests were carried out in a reef. The corrosion morphology, corrosion rate and pitting depth of aluminum alloy in different marine zones were compared and analyzed by methods of surface morphology observation, corrosion product analysis, weight loss test and pitting depth measurement. The results showed that the highest corrosion rate of 5083 aluminum alloy occurred in the full immersion zone of a reef, and the lowest occurred in the atmospheric zone. The corrosion rate in the tidal range zone was between the other two zones. In different marine zones, the samples mainly had local corrosion. The maximum pitting depth of the samples in the atmospheric zone was the largest, while the maximum pitting depth of the samples in the tidal range zone was the smallest. The mixture of aluminum alloy corrosion products and attachments in different marine zones contained calcium. The content of calcium in the atmospheric zone was much lower than that in the tidal range zone and the full immersion zone. The mixture of corrosion products and attachments on the surface of aluminum alloy in the tidal range zone and the full immersion zone mainly contained CaCO3, CaSiO3 and Al2O3. The corrosion rate of 5083 aluminum alloy in different marine zones varies greatly, and a large number of fouling organisms and minerals are attached to the material surface in the tidal range zone and the full immersion zone. |
| Close |
|
|
|