Deep sea, with rich oil, gas, and mineral resources, plays an increasingly crucial role in scientific and industrial realms. However, the highly corrosive feature of deep sea hinders further exploration and development, which requires metal materials with robust corrosion resistance. This review covers an in-depth and all-around overview of the up-to-date advances in corrosion and protection of metals in deep-sea environment. Firstly, the unique characteristics of deep-sea environment are summarized in detail. Subsequently, the corrosion performances of metals in both and simulated deep-sea environments are illustrated systematically. Furthermore, corrosion prevent strategies of metals, including sacrificial anode protection, organic coatings, as well as coatings achieved by physical vapor deposition (PVD coatings), are highlighted. Finally, we outline current challenges and development trends of corrosion and protection of metals in deep-sea environment in the future. The purpose of this review is not only to summarize the recent progress on metal corrosion and protection in deep sea, but also to aid us in understanding them more comprehensively and deeply in a short time, so as to boost their fast development.

中文翻译：

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深海金属腐蚀与防护策略的现状和趋势


深海蕴藏着丰富的石油、天然气和矿产资源，在科学和工业领域发挥着越来越重要的作用。然而，深海的高腐蚀性特征阻碍了进一步的勘探和开发，这需要金属材料具有较强的耐腐蚀性。本综述深入全面地概述了深海环境中金属腐蚀和防护的最新进展。首先，详细总结了深海环境的独特特征。随后，系统地说明了金属在深海环境和模拟深海环境中的腐蚀性能。此外，还重点介绍了金属的防腐蚀策略，包括牺牲阳极保护、有机涂层以及通过物理气相沉积实现的涂层（PVD涂层）。最后，概述了未来深海环境金属腐蚀与防护面临的挑战和发展趋势。本综述的目的不仅在于总结深海金属腐蚀与防护的最新进展，而且有助于我们在短时间内更全面、更深入地了解深海金属腐蚀与防护，以促进其快速发展。