中国激光, 2020, 47 (8): 0802005, 网络出版: 2020-08-24 复制并引用该论文  本文已被引 8 次  被引通知

图 & 表

图 1. 飞秒激光制备沟槽结构的加工装置图与示意图。(a)加工装置图;(b)示意图

Fig. 1. Processing system and schematic diagram of groove structure fabrication by femtosecond laser. (a) Processing system figure; (b) diagram

下载图片 查看原文

图 2. 激光参数对微U型沟槽深度的影响以及超快激光制备得到的几种微沟槽结构的截面轮廓与形貌。(a1)激光功率对微U型沟槽深度的影响;(a2)扫描速率对微U型沟槽深度的影响;(a3)重复次数对微U型沟槽深度的影响;(b1)(b2)(c1)(c2)两种微U形沟槽的截面轮廓与形貌;(d1)(d2)微三角形沟槽的截面轮廓与形貌;(e1)(e2)微矩形沟槽的截面轮廓与形貌

Fig. 2. Influences of laser parameters on micro-U-shaped groove depth and cross-section profiles and morphologies of various microgroove structures fabricated by the ultrafast laser. (a1) Influence of laser power on micro-U-shaped groove depth; (a2) influence of scanning speed on micro-U-shaped groove depth; (a3) repetition time on on micro-U-shaped groove depth; (b1)(b2)(c1)(c2) cross-section profiles and morphologies of two kinds of micro-U-shaped grooves; (d1)(d2) cross-section profile and morphology

下载图片 查看原文

图 3. 两种微U形沟槽结构的微观形貌

Fig. 3. Micro-morphology of two kinds of micro-U-shaped groove structures

下载图片 查看原文

图 4. 减阻测试结果。(a)测试过程;(b)“圆形船”的运动时间;(c)平均运动时间

Fig. 4. Results of drag reduction test. (a) Test procedure; (b) motion time of “round boat”; (c) average motion time

下载图片 查看原文

图 5. 动电位极化曲线测试结果

Fig. 5. Results of potentiodynamic polarization curve test

下载图片 查看原文

图 6. 形貌法腐蚀测试。(a)三种铝合金浸泡不同时间后的形貌:(a1)(a2)(a3) 0 h;(a4)(a5)(a6) 96 h;(a7)(a8)(a9) 192 h。(b)铝合金浸泡192 h后的三维微观形貌:(b1) U₁;(b2) U₂;(b3)超疏水U₁;(b4)超疏水U₂。(c)接触角测试结果:(c1)未加工铝合金;(c2) U₁;(c3) U₂;(c4)超疏水U₁;(c5)超疏水U₂

Fig. 6. Corrosion resistance test using morphology. (a) Morphology of three kinds of aluminum alloys after immersing in salt solution for different time: (a1)(a2)(a3) 0 h; (a4)(a5)(a6) 96 h; (a7)(a8)(a9) 192 h. (b) Micro morphology of three kinds of aluminum alloys after immersing in salt solution for 192 h: (b1) U₁ structure; (b2) U₂ structure; (b3) superhydrophobic U₁ structure; (b4) superhydrophobic U₂ structure. (c) Contact angle test: (c1) pristine alumin

下载图片 查看原文

表 16061铝合金的化学成分

Table1. Chemical composition of 6061 aluminum alloy

Content Mg Si Fe Cu Mn Cr Zn Ti Minimum mass fraction /% - 0.4 - 0.15 - 0.04 - - Maximum mass fraction /% 1.2 0.7 0.7 0.40 0.15 0.35 0.25 0.15

查看原文

表 2飞秒激光制备减阻微U形沟槽结构的主要工艺参数

Table2. Main processing parameters of the ultrafast laser to produce drag reduction micro-U-shaped groove structure

Parameter Value Power /W 4.4 to 7.2 Scanning speed /(mm·s-1) 50 to 140 Repetition times 1 to 5

查看原文

表 3动电位极化曲线法拟合的腐蚀参数

Table3. Fitted corrosion resistance parameters from potentiodynamic polarization curve test

Sample Self-corrosionpotential E/V Corrosion currentdensity I /(A·cm-2) Corrosion speed /(10-3 mm·a-1) Pristine aluminum alloy -0.869 1.470×10-7 1.55 U1 structure -0.934 3.728×10-7 4.06 U2 structure -0.916 2.467×10-7 2.69 Superhydrophobic U1 structure -0.836 4.994×10-8 0.53 Superhydrophobic U2 structure -0.833 6.942×10-8 0.73 Fluorinated aluminum alloy -0.769 2.317×10-8 0.25

查看原文

江国琛, 潘瑞, 陈昶昊, 胡昕宇, 张红军, 钟敏霖. 超快激光制备水面减阻微纳结构及其耐蚀性研究[J]. 中国激光, 2020, 47(8): 0802005. Jiang Guochen, Pan Rui, Chen Changhao, Hu Xinyu, Zhang Hongjun, Zhong Minlin. Ultrafast Laser Fabricated Drag Reduction Micro-nano Structures and Their Corrosion Resistance[J]. Chinese Journal of Lasers, 2020, 47(8): 0802005.