杨广峰,刘玲,夏海洋,崔静.纳秒激光诱导TC4微结构表面抑冰特性实验研究[J].表面技术,2021,50(11):93-102.
YANG Guang-feng,LIU Ling,XIA Hai-yang,CUI Jing.Experimental Study of Ice Suppression Characteristics of TC4 Microstructure Surface Induced by Nanosecond Laser[J].Surface Technology,2021,50(11):93-102 |
| 纳秒激光诱导TC4微结构表面抑冰特性实验研究 |
| Experimental Study of Ice Suppression Characteristics of TC4 Microstructure Surface Induced by Nanosecond Laser |
| 投稿时间：2021-04-15 修订日期：2021-05-26 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.11.007 |
| 中文关键词: 抑冰 霜晶 表面能 微结构 纳秒脉冲激光 |
| 英文关键词:ice suppression frost crystals surface energy microstructure nanosecond pulsed laser |
| 基金项目:国家自然科学基金面上项目(52076212);国家自然科学基金委员会-中国民航局民航联合研究基金(U1933107);中央高校基本科研业务费(ZXH2012D011) |
|
|
|
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究具有大接触角和低表面能的微纳疏水表面，以减少结冰引起的空气碰撞。方法 采用纳秒脉冲激光在TC4表面构建微结构，利用扫描电镜和EDS对TC4表面形貌和元素成分进行观测，应用接触角测量仪分析表面润湿性和表面能，搭建低温结冰结霜实验台，测试表面的抑冰抑霜性能。结果 随着激光功率的增大，TC4合金表面微米颗粒的尺寸增大;接触角逐渐减小，且均高于未加工表面;接触角滞后逐渐增加，且均低于未加工表面;表面自由能逐渐增加，且均低于未处理表面;粘附功逐渐增加，且都小于未处理过的表面。加工后表面液滴冻结时间比未加工表面最高延迟47 s，激光功率为7 W时的冻结时间最长，霜晶质量最小，表面覆盖率最低。结论 高接触角、低接触角滞后的微织构表面可以有效延迟结冰时间。 |
| 英文摘要: |
| Micro nano hydrophobic surfaces with large contact angle and low surface energy were studied to reduce air collision caused by icing. In this paper, a microstructure was successfully constructed on the surface of TC4 using ananosecond pulse laser, and the surface morphology and elemental composition of TC4 were observed by scanning electroscopes and EDS, the surface wettability and surface energy were analyzed by using the contact angle measuring instrument, and a low-temperature ice frost test bench was built to test the performance of ice-suppressing frost of the surface . With the increase of laser power, the size of micron particles on the surface of TC4 alloy increased. The contact angle decreases gradually with the increase of power, and is higher than the unprocessed surface. Surface free energy increases gradually with the increase of power, and is lower than untreated surface; The adhesion work increases gradually with the increase of power, and is smaller than the untreated surface; The freezing time of the surface droplets after processing is 47 s, later than that of the unprocessed surface; The laser power 7 W has the longest freezing time, the lowest frost crystal quality and the lowest surface coverage.The microtexture surface with high contact angle and low contact angle lag can effectively delay the freezing time. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号