宇航材料工艺2025，Vol.55Issue(4)：41-46,6.DOI:10.12044/j.issn.1007-2330.2025.04.006
飞秒激光微加工技术对不锈钢材料表面性能影响研究
Study on the Effect of Femtosecond Laser Micro-processing Technology on the Surface Properties of Stainless Steel Materials
摘要
Abstract
To improve the surface properties of 304 stainless steel,including superhydrophobicity,the material was subjected to femtosecond laser surface microstructuring and silane chemical modification.Scanning electron microscopy(SEM)was used to observe the structural morphology and overall condition after chemical modification,to determine the effect of different morphologies on hydrophobicity,and to analyze the correlation between the roughness of the femtosecond laser-processed microstructure and the contact angle.Simultaneously,performance tests were conducted on the superhydrophobic stainless steel to evaluate its superhydrophobic durability,corrosion resistance,self-cleaning ability,and wear resistance.Analysis and testing reveal that as the surface micro-and nano-structure roughness increases due to laser processing,the contact angle also increases.When the surface roughness reaches 1.75 μm,the hydrophobic angle achieves an optimal value of 154.9°.By calculating the corrosion rates of the two materials,it is found that the corrosion rate of the original stainless steel is 15 times that of the superhydrophobic stainless steel,and the corrosion resistance of the material has been significantly improved.The conclusions indicate that 304 stainless steel modified through surface treatment exhibits excellent superhydrophobic properties,superior corrosion resistance compared to the original stainless steel,and a good self-cleaning effect on the surface.关键词
不锈钢/飞秒激光/微结构/表面性能/超疏水Key words
Stainless steel/Femtosecond laser/Microstructure/Surface properties/Superhydrophobic分类
航空航天引用本文复制引用
何雪莉,肖强,徐睿..飞秒激光微加工技术对不锈钢材料表面性能影响研究[J].宇航材料工艺,2025,55(4):41-46,6.基金项目
西安科技局项目(24GXFW0032) （24GXFW0032）
大学生创新训练计划项目(S202410702106) （S202410702106）
教育部产学合作协同育人项目(230702436294044) （230702436294044）
陕西省特种加工重点实验室开放基金(SXTZKFJJ201902) （SXTZKFJJ201902）
