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| Corrosion Behavior of Long-size Marine Steel Samples in Tropical Sea Area |
| Received:August 10, 2016 Revised:February 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.02.015 |
| KeyWord:marine steel long-size marine environment corrosion |
| Author | Institution |
| ZHANG Peng-hui |
State Key Laboratory for Marine Corrosion and Protection, Luoyang ship material research institute, Qingdao, Shandong province, , China |
| WANG Wei |
Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai , China |
| GUO Wei-min |
State Key Laboratory for Marine Corrosion and Protection, Luoyang ship material research institute, Qingdao, Shandong province, , China |
| DING Kang-kang |
State Key Laboratory for Marine Corrosion and Protection, Luoyang ship material research institute, Qingdao, Shandong province, , China |
| FAN Lin |
State Key Laboratory for Marine Corrosion and Protection, Luoyang ship material research institute, Qingdao, Shandong province, , China |
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| Abstract: |
| Objective To study corrosion behavior of long-size marine steel samples namely A517Q in tropical sea area. Methods The test was made based on the simulated long-size marine steel samples under influences of marine atmosphere, splash and tidal range throughout all immersion zones. Results The samples located at the splash zone corroded the fastest. Corrosion rates of samples at high tide zone were relatively higher than those at low tide zone. Corrosion rate of samples located more deeply were lower than those located more shallowly at the full-immersion zone. The micro-morphologies of marine steels varied in different zones. Conclusion The scouring action of wave splashing in Sanya sea area is large, in combination with high water and air temperature, the corrosion of A517Q long-size samples in the splash zone is severe. Due to the sea creatures growing over the surface and the addition of alloy elements such as Cr, Mo, Mn, Ni, the corrosion of samples at full-immersion zone is retarded. |
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