平行沟槽织构对TB6钛合金表面润湿性、摩擦学性能和耐腐蚀性的改善
Parallel Groove-Textured TB6 Titanium Alloy Surfaces for Improving Wettability,Tribological Properties and Corrosion Resistance
郭嘉梁 1王芳 2刘俊杰 3刘玉怀2
作者信息
- 1. 郑州大学电气与信息工程学院电子材料与系统国际联合研究中心河南省电子材料与系统国际联合实验室,河南郑州 450001
- 2. 郑州大学电气与信息工程学院电子材料与系统国际联合研究中心河南省电子材料与系统国际联合实验室,河南郑州 450001;郑州大学智能传感研究院,河南郑州 450001;郑州大学产业技术研究院有限公司,河南郑州 450001;郑州唯独电子科技有限公司,河南郑州 450001
- 3. 北方民族大学电气与信息工程学院,宁夏银川 750001
- 折叠
摘要
提出了一种快速制备具有超疏水性、耐磨性和耐腐蚀性的Ti-10V-2Fe-3Al(TB6)钛合金表面的方法.通过纳秒激光器对抛光的钛合金进行精确烧蚀,构筑了具有平行微沟槽阵列特征的织构表面.随后,利用紫外线灯照射和十八烷基三氯硅烷溶液浸渍进行化学改性,进一步增强了表面的疏水性.从表面形态和化学组分的角度分析了微沟槽间隔对织构表面润湿性的影响.结果表明,在干滑动、水润滑和油润滑条件下,所制备的超疏水表面相较于原始亲水表面,平均摩擦系数分别降低了 34％、56％和59％.此外,分析了相关摩擦系数变化的机理.通过动电位极化测试验证,所制备的超疏水表面展现出优异的耐腐蚀性,为钛合金基体提供了有效的长期保护.
Abstract
We proposed an efficient method to fabricate superhydrophobic,wear and corrosion resistant groove-textured surfaces based on TB6(Ti-10V-2Fe-3Al)titanium alloy substrates.The smooth surface of the titanium alloy was ablated using a nanosecond laser to create a surface with a parallel groove pattern.In order to further improve the surface hydrophobicity,the laser treated surface was irradiated by an ultraviolet lamp for 1 h and subsequently immersed in a 3wt％octadecyltrichlorosilane solution for 2 h for chemical modification.The wettability of the groove-textured surfaces with varying groove spacing was investigated by analyzing surface morphology and chemical composition.Results show that the average coefficient of friction(COF)of the superhydrophobic surface is reduced by 34％,56％,and 59％compared with that of the original hydrophilic surface under dry,water,and oil lubrication conditions,respectively.The mechanism variation of the CoF was also discussed.Potentiokinetic polarization testing demonstrates that the prepared superhydrophobic surface provides corrosion protection for the titanium alloy substrate.
关键词
激光织构/钛合金/超疏水性/摩擦学性能/耐腐蚀性Key words
laser texturing/titanium alloy/superhydrophobicity/tribological properties/corrosion resistance引用本文复制引用
基金项目
国家自然科学基金(62174148)
国家重点研发计划(2022YFE0112000)
国家重点研发计划(2016YFE0118400)
Key Program for International Joint Research of Henan Province(231111520300)
Ningbo Major Project of"Science,Technology and Innovation 2025"(2019B10129)
Zhengzhou 1125 Innovation Project(ZZ2018-45)
出版年
2024
NETL
NSTL
万方数据