| 刘钊慧,彭文山,丁康康,赵建仓,李治,郭为民,马力.不锈钢在西太平洋深海环境中腐蚀规律研究[J].装备环境工程,2023,20(8):70-79. LIU Zhao-hui,PENG Wen-shan,DING Kang-kang,ZHAO Jian-cang,LI Zhi,GUO Wei-min,MA Li.Corrosion Regularity of Stainless Steel in Deep-sea Environment of the Western Pacific Ocean[J].Equipment Environmental Engineering,2023,20(8):70-79. |
| 不锈钢在西太平洋深海环境中腐蚀规律研究 |
| Corrosion Regularity of Stainless Steel in Deep-sea Environment of the Western Pacific Ocean |
| 投稿时间：2023-03-09 修订日期：2023-04-27 |
| DOI：10.7643/issn.1672-9242.2023.08.010 |
| 中文关键词: 深海环境 不锈钢 实海试验 腐蚀形貌 腐蚀速率 点蚀深度中图分类号:TG172.5 文献标识码:A 文章编号:1672-9242(2023)08-0070-10 |
| 英文关键词:deep-sea environment stainless steel real sea experiment corrosion morphology corrosion rate pit depth |
| 基金项目: |
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| Author | Institution |
| LIU Zhao-hui | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China |
| PENG Wen-shan | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China;State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Shandong Qingdao 266237, China |
| DING Kang-kang | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China;State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Shandong Qingdao 266237, China |
| ZHAO Jian-cang | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China;State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Shandong Qingdao 266237, China |
| LI Zhi | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China |
| GUO Wei-min | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China;State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Shandong Qingdao 266237, China |
| MA Li | Luoyang Ship Material Research Institute, Henan Luoyang 471023, China;State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Shandong Qingdao 266237, China |
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| 中文摘要: |
| 目的 研究不锈钢在西太平洋海域深海环境中的腐蚀规律。方法 采用深海高效串型试验装置对304不锈钢和316L不锈钢在西太平洋深海环境中进行深海实海腐蚀试验，分析不锈钢的腐蚀形貌、腐蚀速率和点蚀深度规律等，研究2种不锈钢在500、800、1 200、2 000 m海深下的腐蚀规律。结果 304不锈钢与316L不锈钢腐蚀质量损失主要由缝隙腐蚀引起，316L不锈钢的腐蚀程度总体上低于304不锈钢，304不锈钢的腐蚀速率低于0.4 mm/a，316L不锈钢的腐蚀速率低于0.25 μm/a。深海环境中，304不锈钢的腐蚀产物主要是α-Fe2O3、γ-FeOOH、γ-Fe2O3，316L不锈钢的腐蚀产物主要是α-FeOOH、γ-FeOOH、γ-Fe2O3。结论304不锈钢和316L不锈钢在西太深海环境中使用过程中应避免缝隙的形成，降低其发生缝隙腐蚀和点蚀的概率。 |
| 英文摘要: |
| The marine equipment is prone to seawater corrosion in the deep-sea environment of the Western Pacific Ocean which is a global hot spot. The work aims to study the corrosion regularities of stainless steel in the deep-sea environment of the Western Pacific Ocean. A deep-sea high efficiency string test device was used to carry seacorrosion experiments on 304 stainless steel and 316L stainless steel in the Western Pacific Ocean. The corrosion morphology, corrosion rate, and pitting depth regularities of stainless steel were analyzed. The corrosion regularities of these two stainless steels at sea depths of 500, 800, 1 200 and 2 000 m were investigated. The results showed that the corrosion weight loss of 304 stainless steel and 316L stainless steel was mainly caused by crevice corrosion, and overall, the corrosion degree of 316L stainless steel was lower than that of 304 stainless steel; The corrosion rate of 304 stainless steel was lower than 0.4 mm/a, and the corrosion rate of 316L stainless steel was lower than 0.25 μm/a. The corrosion products of 304 stainless steel in the deep-sea environment mainly contained α-Fe2O3, γ-FeOOH and γ-Fe2O3.The corrosion products of 316L stainless steel mainly contained α-FeOOH, γ-FeOOH and γ-Fe2O3. The formation of crevices should be avoided during the use of 304 stainless steel and 316L stainless steel in the Western Pacific Ocean environment to reduce the probability of crevice corrosion and pitting. |
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