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The metal structure on the outer surface of aircraft is prone to corrosion when it serves in the marine environment. The forward design of appropriate measures is the best method to reduce corrosion. In this paper, three typical structures of the outer surface of the aircraft were selected and different protection methods were applied to the skin, cloud locks and brace rod. The corrosion behavior of the specimens was characterized by accelerated corrosion tests. The corrosion mechanisms of different parts were analyzed and the corrosion prevention effects of different protection methods were studied. It was found that the metal structures in the skins and cloud locks can be physically shielded by coating them with epoxy resin or grease to enhance corrosion protection. The aluminum rivets in the spacers, on the other hand, require no additional corrosion protection. Provides guidance for the design of corrosion protection for typical structures on the exterior surface portions of aircraft in service in coastal environment and marine environment.

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Research on the Corrosion Protection Method of Typical Metal Structure on the Outer Surface of Aircraft in Marine Environment

  • 会议论文

  • 发表日期：

    2026年

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  • Yang Liu,
  • Changliang Lin,
  • Shaobo Gong,
  • Gangyong Hao,
  • Mingliang Liu,
  • Wangjun Hao

摘要

The metal structure on the outer surface of aircraft is prone to corrosion when it serves in the marine environment. The forward design of appropriate measures is the best method to reduce corrosion. In this paper, three typical structures of the outer surface of the aircraft were selected and different protection methods were applied to the skin, cloud locks and brace rod. The corrosion behavior of the specimens was characterized by accelerated corrosion tests. The corrosion mechanisms of different parts were analyzed and the corrosion prevention effects of different protection methods were studied. It was found that the metal structures in the skins and cloud locks can be physically shielded by coating them with epoxy resin or grease to enhance corrosion protection. The aluminum rivets in the spacers, on the other hand, require no additional corrosion protection. Provides guidance for the design of corrosion protection for typical structures on the exterior surface portions of aircraft in service in coastal environment and marine environment.