杨佳础, 郑攀峰, 谭浩, 胡甲, 董泽华. 极地海水冲刷-应力耦合下船舶腐蚀及其对水下静电场的影响研究[J]. 中国腐蚀与防护学报, 10.11902/1005.4537.2026.169.
Jiachu Yang, Panfeng Zheng, Hao Tan, Jia Hu, Zehua Dong. Deciphering the Corrosion Influenced Underwater Electric Field of Submarines Under Erosion-tensile Stress in Polar Seawater[J]. Journal of Chinese Society for Corrosion and protection, 0, (): 0-.

摘要 相关文章 Metrics 全文: PDF(2066 KB)   摘要: 潜航器水下电场隐身对于其规避探测与攻击极为重要。在极地海水中，船用材料的电化学极化特性发生改变，影响了潜航器水下静电场分布，使传统电场隐身技术受到挑战。本文针对极地海水中潜航器艇身（921钢）与螺旋桨（QAl9-4铝青铜）的腐蚀及由此引起的静电场传播问题，结合多物理场耦合测试与数值仿真，研究了低温（-2.0℃）海水中921钢与QAl9-4铝青铜的电化学极化及水下静电场特征。结果表明：拉应力促进921钢的阳极溶解，而海水冲刷加速了溶解氧的传质，促进了阴极去极化过程；拉应力与冲刷耦合还会抑制921钢表面形成保护性腐蚀产物层，导致协同腐蚀加速。相比于20℃海水，921钢的腐蚀电流在-2.0℃海水中明显降低；对QAl9-4而言，低温也降低了其腐蚀电流，但同时抑制其表面保护性腐蚀产物膜生长，有导致局部腐蚀风险。仿真计算表明：921钢的阴极极化特性对阴极保护电流与静电场影响显著，静电场强度在单一拉应力、单一冲刷以及冲刷-拉应力耦合工况下呈现依次增大的趋势。尽管-2.0℃海水中所需的外加阴极保护电流下降，但低温海水中较低的电导率反而导致水下静电场强度高于在20℃海水中，使潜航器更易被水下探测器感知。该研究结果可为潜航器的阴极保护与静电场隐身的协同控制提供技术支持。 关键词 ： 极地海水,  冲刷-应力腐蚀,  外加电流阴极保护,  多物理场耦合,  静电场,  边界元法     Abstract：Electric- field stealth is crucial for submarines to evade detection and attack. However, variable electrochemical polarization of submarine materials in polar seawater may alter the underwater static electric field distribution, posing challenges for traditional electric- field stealth technologies. To investigate the corrosion behavior of the hull (921 steel) and propeller (QAl9-4 aluminum bronze) and the associated static electric field propagation in polar seawater, this work combines Multiphysics coupling tests and numerical simulations. Specifically, it examines the electrochemical properties and static electric field characteristics of 921 steel and QAl9-4 aluminum bronze in low- temperature (-2.0℃) seawater and finds that tensile stress promotes the anodic dissolution of 921 steel, while seawater erosion accelerates dissolved oxygen migration, thereby facilitating cathodic depolarization. Furthermore, the coupling of tensile stress and erosion inhibits the formation of a protective corrosion product layer on the surface of 921 steel, thereby accelerating synergistic corrosion. Compared with 20℃ seawater, the corrosion current of 921 steel decreases significantly at low temperatures. Regarding QAl9-4, although low temperatures inhibit the formation of a protective film, kinetic limitations lead to a similar reduction in the corrosion current. Simulations further reveal that the cathodic polarization of 921 steel significantly influences the required cathodic protection current and the static electric field distribution. Under tensile stress, erosion, and their coupled effects, the static electric field intensity increases sequentially. Although -2.0℃ seawater requires a lower impressed current for submarine protection, the decreased seawater conductivity results in a higher static electric field intensity compared with that in 20℃ seawater, rendering the submarine more susceptible to detection. Ultimately, these findings may highlight the synergistic control of Impressed Current Cathodic Protection (ICCP) systems and underwater static electric- field stealth. Key words： Polar seawater    Erosion-stress corrosion    Impressed current cathodic protection    Multiphysics coupling    Static electric field    Boundary element method. 收稿日期: 2026-05-29      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 杨佳础 郑攀峰 谭浩 胡甲 董泽华 44.8K 链接本文: https://www.jcscp.org/CN/10.11902/1005.4537.2026.169      或      https://www.jcscp.org/CN/Y0/V/I/0 [1] 孟宪级;庄新国;吴中元;梁旭巍;袁振昆;刘艳华. 区域性阴极保护数学模型算法的改进[J]. 中国腐蚀与防护学报, 1998, 18(3): 221-226. Viewed Full text Abstract Cited   Shared      Discussed