|
| Corrosion Characteristics of Tropical Coastal Structures and Analyses of Their Influencing Factors |
| Received:January 01, 2021 Revised:February 18, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.07.009 |
| KeyWord:tropical coastal area coastal structures corrosion characteristics atmospheric corrosion environmental factors |
| Author | Institution |
| RONG Yu-mei |
College of Chemistry and Environment, Zhanjiang , China |
| ZHANG Ji-biao |
College of Chemistry and Environment, Zhanjiang , China;Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Zhanjiang , China |
| CHEN Chun-liang |
Analysis and Testing Center, Zhanjiang , China |
| DENG Pei-chang |
College of Chemistry and Environment, Zhanjiang , China |
| HU Jie-zhen |
College of Mechanical and Power Engineering, Guangdong Ocean University, Zhanjiang , China |
|
| Hits: |
| Download times: |
| Abstract: |
| This paper aims to study the corrosion characteristics and influencing factors of structures in tropical coastal areas. Through micro-scale investigation and microzone inspection in three typical coastal cities of Zhanjiang, Zhuhai, and Shenzhen, the corrosion characteristics and differences of structures are compared and summarized. The survey results show that crevice corrosion and weld corrosion are the corrosion types of highest occurrence frequency for tropical coastal structures. The average frequency of crevice corrosion is about 66.6%, and the average frequency of weld corrosion is about 53.2%. With the increase of the distance from the coastline, the average decrease of corrosion degree from structures 100 m away from coastlines to structures 200 m away from coastlines is 22.1%. The serious corrosion proportion on the side of structures near the sea is higher than the far side of structures, and the average serious corrosion proportion difference between near sides and far sides of structures 100 m away from the sea is 10.4% higher than those 200 m away from the sea on average. The corrosion difference of structures in tropical coastal areas is closely related to the distance from the sea, the orientation of structures and the environmental factors (relative humidity and air pollutant concentration) of the tropical marine atmosphere. |
| Close |
|
|
|