纳秒激光制备超疏水TC4钛合金表面的抗结霜性能
Frost Resistance of Superhydrophobic TC4 Titanium Alloy Surface byNanosecond Laser
摘 要
采用纳秒激光对TC4钛合金表面进行刻蚀,然后放入电热干燥箱内烘烤,研究了钛合金表面的浸润特性、微观结构及抗结霜性能。结果表明:在100 W激光功率下纳秒激光刻蚀和烘烤处理后钛合金表面接触角超过160°,而滚动角小于5°,具有非常好的超疏水性能,钛合金表面呈纳米级的凹坑、凸起和规则球状结构;激光刻蚀钛合金表面经烘烤后同时满足了粗糙微观结构与低表面能的条件,表面的浸润特性从超亲水状态转变为超疏水状态;在-15℃下激光刻蚀和烘烤后的超疏水钛合金表面9 μL水滴完全结冰所需时间为360 s,比未激光刻蚀钛合金延长了2倍以上,且水滴完全结冰后仍能保持大于130°的接触角;在-15℃恒湿条件下持续冷冻10 min后超疏水钛合金表面只出现了零散的小颗粒霜晶,而未激光刻蚀钛合金表面密集分布着大量小颗粒霜晶。
烘烤
超疏水
钛合金
抗结霜性能
nanosecond laser
baking
superhydrophobic
titanium alloy
frost resistance
Abstract
The surface of TC4 titanium alloy was etched by nanosecond laser, and then baked in an electrothermal drying oven. The wetting characteristics, microstructure and frost resistance of titanium alloy surface were studied. The results show that after nanosecond laser etching at 100 W laser power and baking, the contact angle of titanium alloy surface exceeded 160°, and the rolling angle was less than 5°, indicating the surface had superhydrophobic properties. The surface of titanium alloy presented nano pits, bulges and regular spherical structures. After baking, the surface of laser etched titanium alloy met the conditions of rough microstructure and low surface energy, and the wetting characteristics of the surface changed from superhydrophilic state to superhydrophobic state. The time required for complete freezing of 9 μL water droplet on superhydrophobic titanium alloy surface at -15℃ was 360 s, which was more than 2 times longer than that of titanium alloy without laser etching, and the contact angle of water droplets could still be maintained greater than 130° after complete freezing. After being frozen for 10 min at -15℃ with constant humidity, only scattered small frost crystals appeared on the superhydrophobic titanium alloy surface, while a large number of small frost crystals were densely distributed on the surface of titanium alloy without laser etching.
中图分类号 TN249 DOI 10.11973/jxgccl202206014
所属栏目 专题报道（金属材料表面处理）
基金项目
收稿日期 2021/11/3
修改稿日期 2022/5/13
网络出版日期
作者单位点击查看
备注于庆华(1965-),男,辽宁东沟人,副教授,学士通信作者:刘顿教授
引用该论文: YU Qinghua,YU Shisheng,WANG Shuai,SHEN Yunlei,CHEN Lie,LIU Dun. Frost Resistance of Superhydrophobic TC4 Titanium Alloy Surface byNanosecond Laser[J]. Materials for mechancial engineering, 2022, 46(6): 84～90
于庆华,于世胜,王帅,申云磊,陈列,刘顿. 纳秒激光制备超疏水TC4钛合金表面的抗结霜性能[J]. 机械工程材料, 2022, 46(6): 84～90
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【5】李荣.机翼钛合金蒙皮成型的问题及措施研究[J].粘接,2019,40(11):125-128. LI R.Research on problems and measures of wing titanium alloy skin forming[J].Adhesion,2019,40(11):125-128.
【6】李小飞,洪时泉,周进,等.飞机防冰表面材料研究进展[J].航空科学技术,2019,30(7):1-7. LI X F,HONG S Q,ZHOU J,et al.Review of anti-icing surface materials[J].Aeronautical Science&Technology,2019,30(7):1-7.
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【12】赵倩,王晓兰,符家华.5052铝合金表面超疏水复合涂层的制备及其耐蚀性[J].材料科学与工程学报,2020,38(5):778-784. ZHAO Q,WANG X L,FU J H.Preparation and corrosion resistance of superhydrophobic coatings on 5052 aluminium alloy[J].Journal of Materials Science and Engineering,2020,38(5):778-784.
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【15】石惠,林御寒,贾天卿,等.基于空间光调制器的飞秒激光时空干涉在不锈钢表面高效率制备超疏水功能的仿生结构[J].光子学报,2021,50(6):99-107. SHI H,LIN Y H,JIA T Q,et al.Efficient processing of super-hydrophobic biomimetic structures on stainless steel surfaces by spatiotemporal interference of two femtosecond laser beams based on spatial light modulator[J].Acta Photonica Sinica,2021,50(6):99-107.
【16】郭楠,李晶,伍旭东,等.激光刻蚀法制备超疏水自清洁铝合金表面[J].长春理工大学学报(自然科学版),2021,44(3):70-75. GUO N,LI J,WU X D,et al.Fabricate of super-hydrophobic self-cleaning aluminum alloy surface via laser processing[J].Journal of Changchun University of Science and Technology (Natural Science Edition),2021,44(3):70-75.
【17】BARISH J A, GODDARD J M. Anti-fouling surface modified stainless steel for foodprocessing[J], Food Bioprod Process,2013,91(4):352-361.
【18】MA W, HIGAKI Y, OTSUKA H, et al. Perfluoropolyether-infused nano-texture:A versatile approach to omniphobic coatings with low hysteresis and high transparency[J]. Chemical Communications,2013, 49(6):597-599.
【19】羊思洁,罗松,杨新,等.TC4钛合金超疏水涂层的制备及性能[J].电镀与涂饰,2021,40(22):1686-1693. YANG S J, LUO S, YANG X, et al. Preparation and properties of superhydrophobic coating on TC4 titanium alloy[J]. Electroplating&Finishing,2021,40(22):1686-1693.
【20】连峰,任洪梅,管善堃,等.超疏水钛合金表面的制备及其摩擦学性能[J].中国有色金属学报,2015,25(9):2421-2427. LIAN F, REN H M, GUAN S K, et al. Preparation of super hydrophobic titanium alloy surface and its tribological performance[J]. The Chinese Journal of Nonferrous Metals,2015,25(9):2421-2427.
【21】刘顿,伍义刚,胡勇涛,等.皮秒激光制备铝基超疏水表面[J].激光与光电子学进展,2016,53(10):179-187. LIU D, WU Y G, HU Y T, et al. Fabrication of super-hydrophobic aluminum surface by picosecond laser[J]. Laser&Optoelectronics Progress,2016,53(10):179-187.
【22】杨奇彪,刘少军,汪于涛,等.纳秒激光诱导铝板表面超疏水微纳结构[J].激光与光电子学进展,2017,54(9):254-259. YANG Q B,LIU S J,WANG Y T,et al.Super-hydrophobic micro-nano structures on aluminum surface induced by nanosecond laser[J].Laser&Optoelectronics Progress,2017,54(9):254-259.
【23】CHEN L, WEN G Q, YANG T, et al. Fractal characteristics of disordered microstructure on the laser-textured silicone rubber surface in wettability transition[J]. Journal of Physics D:Applied Physics, 2021, 54(43):435302.
【24】LONG J Y, ZHONG M L, ZHANG H J, et al. Superhydrophilicity to superhydrophobicity transition of picosecond laser microstructured aluminum in ambient air[J]. Journal of Colloid and Interface Science, 2015, 441:1-9.
【25】刘鑫,张旋,闵敬春.壁面静止水滴冻结过程形状变化[J].工程热物理学报,2020,41(3):704-708. LIU X,ZHANG X,MIN J C.Shape variation of sessile water droplet during freezing[J].Journal of Engineering Thermophysics,2020,41(3):704-708.
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