飞秒激光加工船板钢表面润湿性快速转变工艺  

Fast wettability transition of ship plate steel surface treated by femtosecond laser

作　　者：霍婧雅 李美然 代汝云 肖凯恒 朱晶[1] 乔军[1] HUO Jingya;LI Meiran;DAI Ruyun;XIAO Kaiheng;ZHU Jing;QIAO Jun(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2022年第5期329-333,共5页Journal of University of Science and Technology Liaoning

基　　金：辽宁省自然科学基金(2019JH3/30100004);辽宁科技大学大学生创新创业计划(S202210146078)。

摘　　要：利用飞秒激光在船板钢表面制备微-纳米结构,可提高表面疏水性,进而提高其耐蚀性,但疏水性需要较长时间达到稳定。本文探究激光扫描线间距和表面形貌及润湿性的关系,并采用低表面能处理+低温退火的快速转化工艺缩短表面润湿性转化时间。实验结果表明,随着扫描线间距增加,表面波纹的连续性和润湿性逐渐降低;快速转化工艺能在6 h内使材料表面从亲水转变为疏水,接触角从刚加工后的7°提升至146°。Fabricating micro-nano structures on the surface of ship plate steel using femtosecond laser can improve the hydrophobicity and the corrosion resistance of the surface,but it generally takes long time to stabilize the hydrophobicity.In this paper,the relationship between laser scan line spacing and surface morphology and wettability was investigated,and a fast transition process of low surface energy treatment followed by low temperature annealing was used to shorten the transition time of surface wettability.The experimental results show that the continuity and wettability of surface ripples decreased gradually with the increase in scan line spacing.The rapid transition process changed the steel surface from hydrophilic to hydrophobic within 6 h,and the contact angle accordingly increased from 7°to 146°.

关 键 词：船板钢 飞秒激光 低表面能处理 低温退火 疏水性 

分 类 号：TG142.41[一般工业技术—材料科学与工程] TN204[金属学及工艺—金属材料]