Ti-6Al-4V (TC4) samples were first heat-treated in a muffle furnace at 500～950℃ for 30minutes,then anodized in Na2HPO4 electrolyte at 30V for 5 hours,and finally modified with low surface energy in a 1% fluorosilane ethanol solution.The test results showed that the corrosion current density (Jcorr) on the alloy surface after heat treatment increased significantly compared with that of the substrate,indicating that the heat-treated titanium alloy was more susceptible to oxidation reactions in a corrosive environment,and the reaction activity of the alloy surface was improved.After anodization treatment,a pine-like micro-nano structure was generated on the surface of the alloy,which presented a three-dimensional structure with high specific surface area.The surface roughness of the oxide film was the key factor affecting the hydrophobicity of the samples relative to the substrate grain size and pineal-like grain size.The Jcorr of the modified samples decreased significantly,indicating that the hydrophobic surface formed after modification reduced its interaction with corrosive media such as water,thus enhancing the corrosion resistance of the material.
[1] Chen S,Zhu B F,Wang X S,et al.Fabrication of superhydrophobic TA2 titanium alloy and preliminary assessment of its antifouling,self-cleaning,anti-icing,friction resistance,and corrosion resistance performance[J].Journal of Coatings Technology and Research,2024,21(4):1373-1383.
[2] Martin V,Fereshteh B,Taylor K,et al.Emerging strategies to prevent bacterial infections on titanium-based implants[J].Small,2024,46(20):32404351.
[3] Liu C,Tong S K,Yue Y F,et al.Laser-based fabrication of superwetting titanium alloy with enhanced corrosion and erosion-corrosion resistance[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2024,688:133648.
[4] Khan M Z,Militky J,Petru M,et al.Recent advances in superhydrophobic surfaces for practical applications:a review[J].European Polymer Journal,2022,178:111481.
[5] Cui J,Wang Y F,Wang C X,et al.Anti-icing and weatherability study of superhydrophobic titanium metal matrix composites surface[J].Colloid and Interface Science Communications,2024,58:100759.
[6] Farag A A,Mohamed E A,Toghan A.The new trends in corrosion control using superhydrophobic surfaces:a review[J].Corrosion Reviews,2023,41(1):21-37.
[7] Consuelo C,Teresa G,Nicola C,et al.Titanium surface modification for implantable medical devices with anti-bacterial adhesion properties[J].Materias (Basel),2022,15(9):3283.
[8] Feng X M,Sun P F,Tian G Z.Recent developments of superhydrophobic surfaces (SHS) for underwater drag reduction opportunities and challenges[J].Advanced Materials Interfaces[J] ,2022,9(2):2101616.[9] Xiang G X,Li S Y,Song H,et al.Fabrication of modifier-free superhydrophobic surfaces with anti-icing and self-cleaning properties on Ti substrate by anodization method[J].Microelectronic Engineering,2020,233:111430.
[10] Li Y,Zhou Z L,He Y Y.Tribocorrosion and surface protection technology of titanium alloys:a review[J].Materials (Basel),2023,22,17(1):65.
[11] Song Wei,Xing Y S,Song Z.Improving anti-corrosion property of aluminium alloy by fabrication MAO coating via mixing titanium potassium oxalate into electrolyte[J].Molecules,2025,30(1):153.
[12] 郝江华,张政斌,段党全.航空钛合金的表面处理工艺及方法应用研究[J].中国金属通报,2025(1):104-106.
[13] Shao H,Bao J J,Shan,et al.Recrystallization mechanism and phase precipitation of Ti55511 titanium alloy by novel thermal process[J].Journal of Materials Research and Technology,2025,36:3350-3366.
[14] Liu Y,Zhang Y Z,Wang L L,et al.Fast and large-scale anodizing synthesis of pine-cone TiO2 for solar-driven photocatalysis[J].Catalysts,2017,7(8):229.
[15] Dong Y C,Li X,Yu Z Q,et al.Corrosion resistance of ultrafine-grainde titanium alloys in different corrosiove environments[J].MATEC Web of Conferences,2020,321:06001.
[16] 罗检,张勇,钟庆东,等.晶粒度对一些常用金属耐腐蚀性能的影响[J].腐蚀与防腐,2012,33(4):349-352.
[17] 张雅妮,宋伟.钛合金的腐蚀行为研究[J].全面腐蚀控制,2025,39(2):203-207.
[18] Victor O,Elena L,Svetlana Y.The effect of laser irradiation of the surface of VT6 titanium alloy on its microstructure,roughness and friction coefficient[J].Materials Today:Proceedings,2021,38(4):1871-1874,
[19] Celik I,Ural A G,Aliyazici M,et al.Anodic coating of pure titanium:structural and tribological effects of surface roughness diversity[J].Results in Surfaces and Interfaces,2025,18:100449.
[20] Michael T R,Sondre K S,Signe K.Cassie-baxter and wenzel states and the effect of interfaces on transport properties across membranes[J].Journal of Physical Chemistry B,2021,125(46):12730-12740.
基金资助
陕西省自然科学基础研究计划(面上项目)(2024JC-YBMS-347);陕西省秦创原“科学家+工程师”队伍建设项目(2024QCY-KXJ-115)
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