进入新世纪以来，舰船海水管路系统材料逐步发展为以铜镍合金为主干材料，铸造青铜合金为配套材料的材料体系，同时钛及镍基合金的比例持续升高。这些高电位金属一方面大幅提升了海水管路的耐海水腐蚀性能，尤其是耐冲刷腐蚀性能，另一方面也提高了钛、镍基合金管路与低电位的铜合金管路及附件连接时的电偶腐蚀风险。为应对钛及镍基合金应用带来的上述风险，美国等国外海军通过长期试验研究，对于舰船海水管路系统电偶腐蚀控制系列技术进行了充分评估和考核验证。本文论述国外海军舰船海水管路系统电偶腐蚀控制技术研究的重点方向以及相关考核试验结论，为我国同领域的技术发展提供参考借鉴。
Since the beginning of the new century, the material of the seawater pipeline system has gradually developed into a material system with copper-nickel alloy as the main material and cast bronze alloy as the supporting material, and the proportion of titanium and nickel-based alloys continues to increase. On the one hand, these high-potential metals greatly improve the seawater corrosion resistance of seawater pipelines, especially the erosion corrosion resistance, and on the other hand, improve the connection of titanium and nickel-based alloy pipelines with low-potential copper alloy pipelines and accessories. The risk of galvanic corrosion. In order to cope with the above risks brought by the application of titanium and nickel-based alloys, the US and other foreign navies have fully evaluated and verified the galvanic corrosion control series technology of the ship seawater pipeline system through long-term experimental research. This paper discusses the key directions and evaluation conclusions of the research on galvanic corrosion control technology of seawater pipeline system in foreign naval vessels, which can provide reference for the technical development in the same field of us.
2020,42(8): 98-100 收稿日期：2020-03-16
DOI：10.3404/j.issn.1672-7649.2020.08.018
分类号：TG174.4
作者简介：罗雯军(1983-),男,高级工程师,主要从事舰船总体设计
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