| 朱飞越,张国庆,吕建伟,宋博.压载舱锌阳极失效原因分析及实验室研究[J].装备环境工程,2020,17(10):63-67. ZHU Fei-yue,ZHANG Guo-qing,LYU Jian-wei,SONG Bo.Failure Analysis and Laboratory Study of Zinc Anode in Ballast Tank[J].Equipment Environmental Engineering,2020,17(10):63-67. |
| 压载舱锌阳极失效原因分析及实验室研究 |
| Failure Analysis and Laboratory Study of Zinc Anode in Ballast Tank |
| 投稿时间：2020-03-20 修订日期：2020-04-20 |
| DOI：10.7643/issn.1672-9242.2020.10.010 |
| 中文关键词: FPSO 压载舱 锌阳极 失效 实验研究 |
| 英文关键词:FPSO ballast tank zinc anode failure experimental study |
| 基金项目: |
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| Author | Institution |
| ZHU Fei-yue | Offshore Oil Engineering Co., Ltd, Tianjin 300452, China |
| ZHANG Guo-qing | Offshore Oil Engineering Co., Ltd, Tianjin 300452, China |
| LYU Jian-wei | Offshore Oil Engineering Co., Ltd, Tianjin 300452, China |
| SONG Bo | Offshore Oil Engineering Co., Ltd, Tianjin 300452, China |
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| 中文摘要: |
| 目的 找到压载舱锌阳极失效原因，并提出整改方案。方法 对服役环境进行调研、阳极化学成分检测、电化学性能检测以及阳极表面形貌检测。结果 干湿交替以及高温的环境是造成锌阳极发生钝化的主要原因。在干湿交替环境下，阳极腐蚀表面晶粒松散，晶界宽度大，发生晶间腐蚀和晶粒脱落，造成了阳极失效。结论 通过该项目的实验研究，得出了锌阳极的适用条件，在干湿交替的环境以及高温环境(50 ℃)下，不推荐使用锌阳极，建议使用铝阳极。 |
| 英文摘要: |
| The work aims to find out the cause for failure of zinc anode in ballast tank and put forward the repair plan. The service environment was investigated, the chemical composition of anode was tested, the electrochemical properties were inspected and the surface morphology was detected. The dry-wet alternating environment and high temperature were main causes for passivation of zinc anode. Under dry-wet alternating environment, the grains on the corroded surface of anode were loose, the width of grain boundary was large and the intergranular corrosion and grain shedding occurred, resulting in anode failure. Through the experimental study of this project, the applicable conditions of zinc anode are obtained. In the dry-wet alternating environment and at high temperature (50 ℃), aluminum anode instead of zinc anode is recommended. |
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