摘要
通过飞秒激光技术对718镍基合金表面进行处理,以优化其抗腐蚀性能。试验采用不同的激光功率和扫描速度,分析了表面微纳结构的变化及其对材料抗腐蚀性的影响,最终确定最佳工艺参数为5 W激光功率、10 mm/s扫描速度及3次扫描。结果表明,低扫描速度和适中的激光功率显著提高了合金表面的疏水性。在强氧化性腐蚀环境中,处理后的合金表现出更高的阻抗。同时,显微硬度和摩擦磨损试验。结果表明,飞秒激光处理后的合金表面具有更高的硬度和更好的耐磨性,验证了该技术在提升镍基合金抗腐蚀性能方面的有效性。
This study investigates the enhancement of corrosion resistance in 718 Nickel-based alloy through femtosecond laser surface treatment.The research systematically examines the effects of varying laser powers and scanning speeds on surface mi-cro-nanostructure formation and subsequent corrosion performance.Optimal processing parameters were determined to be 5 W laser power,10 mm/s scanning speed,and 3 passes.The results showed that low scanning speeds and moderate laser power significantly enhanced the hydrophobicity of the alloy surface.In highly oxidative corrosive environments,the laser-treated al-loy exhibited higher impedance.Additionally,microhardness and friction wear tests indicated that the laser-treated surface had higher hardness and better wear resistance compared to untreated nickel-based alloy.These findings demonstrate the effective-ness of femtosecond laser technology in enhancing the corrosion resistance of nickel-based alloys.
作者
郝盼
杨芳
张启伟
Hao Pan;Yang Fang;Zhang Qiwei(Engineering Training Center,Chengdu Aeronautic Polytechnic,Chengdu 610100,Sichuan,China)
出处
《应用激光》
北大核心
2025年第4期69-75,共7页
Applied Laser
基金
成都航空产业发展与文化建设研究中心资助项目(CAIACDRCXM2024-14)
成都航空职业技术学院自然科研项目(ZZX0623084)。
关键词
镍基合金
秒激光
表面处理
抗腐蚀性
微纳结构
nickel-based alloy
femtosecond laser
surface treatment
corrosion resistance
micro-nanostructure
