The cavitation erosion damage of the materials in seawater is more severe than in freshwater due to the coupling effect of mechanical impact, instantaneous high temperature and seawater corrosion. This study reported that the ceramic/organic coating fabricated by the vacuum pressure impregnation epoxy resin into as-sprayed ceramic coating is introduced. The corrosion inhibition mechanism of the ceramic-based coatings in seawater after introducing the epoxy resin was further clarified. The influence of epoxy resin on the microstructure and mechanical properties of the ceramic coatings were systematically evaluated based on SEM, Vicker hardness and scratch results. The corrosion behaviors of the ceramic-based coatings with/without sealing treatment were evaluated by electrochemical corrosion tester. Their cavitation erosion performance in seawater was comparatively studied using the ultrasonic vibration cavitation testing machine. It was demonstrated by the experimental results that the hardness, compactness and cohesive strength of the ceramic/organic coatings were greatly improved compared with those of the as-sprayed ceramic coatings. The epoxy resin completely filled the defects of the ceramic coatings and effectively prevented the invasion of seawater. Accordingly, the anti-cavitation erosion of the ceramic/organic coatings was significantly improved.

由于机械冲击，瞬时高温和海水腐蚀的耦合作用，海水中材料的空化腐蚀破坏比淡水中更严重。该研究报道了将真空压力浸渍环氧树脂制成喷涂陶瓷涂层的陶瓷/有机涂层。进一步介绍了引入环氧树脂后，陶瓷基涂层在海水中的缓蚀机理。根据SEM，维氏硬度和划痕结果，系统地评估了环氧树脂对陶瓷涂层微观结构和力学性能的影响。通过电化学腐蚀测试仪评估了具有/不具有密封处理的陶瓷基涂层的腐蚀行为。使用超声波振动空化试验机对它们在海水中的空化侵蚀性能进行了比较研究。实验结果表明，与喷涂后的陶瓷涂层相比，陶瓷/有机涂层的硬度，致密性和内聚强度得到了极大的改善。环氧树脂完全填充了陶瓷涂层的缺陷，并有效地防止了海水的入侵。因此，显着改善了陶瓷/有机涂层的抗气蚀侵蚀。与喷涂后的陶瓷涂层相比，陶瓷/有机涂层的致密性和内聚强度大大提高。环氧树脂完全填充了陶瓷涂层的缺陷，并有效地防止了海水的入侵。因此，显着改善了陶瓷/有机涂层的抗气蚀侵蚀。与喷涂后的陶瓷涂层相比，陶瓷/有机涂层的致密性和内聚强度大大提高。环氧树脂完全填充了陶瓷涂层的缺陷，并有效地防止了海水的入侵。因此，显着改善了陶瓷/有机涂层的抗气蚀侵蚀。