船用钛合金微弧氧化膜的性能及其研究进展

钛合金密度小、比强度高、可加工性好及耐海水腐蚀性强,是一种优秀的船舶材料.然而钛合金较低的耐磨性能、耐高温氧化性能及其对异种金属的电偶腐蚀等制约了其在船舶中实际应用.通过微弧氧化在钛合金表面原位生长氧化物陶瓷层,可显著改善钛合金的以上性能.文中综述了国内外船用钛合金微弧氧化研究进展及微弧氧化对钛合金的耐磨性、耐蚀性、结合强度及抗高温氧化性能的研究现状,展望了微弧氧化技术改善船用钛合金表面性能的发展趋势.

Performance and Research Progress of Oxide Ceramic Coatings by Micro-arc Oxidation on Shipbuilding Titanium Alloy

Titanium is a new shipbuilding structural material, which has excellent comprehensive properties, such as the low density, high specific strength, good workability, and excellent resistance to seawater corrosion. However, the titanium using shipbuilding material is handicapped by several critical disadvantages, including the lower wear resistance, the ability of resistance to high temperature oxidation, and the galvanic corrosion when titanium alloy contacts with other metals. The ceramic coating on the surface of titanium alloy obtained through microarc oxidation can improve these disadvantages of titanium alloy. This paper reviews, the recent research progress and the property improvements on the wear resistance, corrosion resistance, bonding strength, and high-temperature oxidation resistance on shipbuilding titanium alloy surface by micro-arc oxidation are reviewed. The trends of research of microarc oxidation technology for shipbuliding titanium alloy surface are also anticipated.