不同环境下激光抛光(FeCoNi)_(86)Al_(7)Ti_(7)高熵合金表面粗糙度分析  

Surface Roughness Analysis of Laser Polishing(FeCoNi)_(86)Al_(7)Ti_(7)High Entropy Alloy under Different Environments

作　　者：李鹏飞 毛永明[2] 王雨航 张志强 李亮亮 徐昊[2] 孔德海 LI Pengfei;MAO Yongming;WANG Yuhang;ZHANG Zhiqiang;LI Liangliang;XU Hao;KONG Dehai(Tianjin Aviation Equipment Safety and Airworthiness Technology Innovation Center,Civil Aviation University of China,Tianjin 300300,China;School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China;Innovation Research Institute,Shenyang Aircraft Corporation,Shenyang 110000,China)

机构地区：[1]天津市航空装备安全性与适航技术创新中心,天津300300 [2]江苏大学机械工程学院,江苏镇江212013 [3]沈阳飞机工业(集团)有限公司创新研究院,辽宁沈阳110000

出　　处：《铜业工程》2024年第5期107-114,共8页Copper Engineering

基　　金：国家自然科学基金青年项目(52305363);基础加强科技计划项目(A04014);江苏省自然科学基金项目(BK20210758);中国博士后科学基金面上一等资助项目(2022M710060);天津市航空装备安全性与适航技术创新中心开放基金项目(JCZX-2023-KF-01)资助。

摘　　要：为研究不同环境下激光抛光对(Fe Co Ni)_(86)Al_(7)Ti_(7)高熵合金表面粗糙度的影响,通过调整激光功率、扫描速度等参量,分析激光抛光后的三维形貌与表面质量。结果表明,在空气中进行激光抛光,激光扫描速度分别控制为v=500 mm/s,v=750 mm/s,v=1000 mm/s的情况下,当激光功率P=24%时得到的样件表面粗糙度值最低;激光扫描速度分别控制为v=1250 mm/s,v=1500 mm/s的情况下,当激光功率P=40%时得到的样件表面粗糙度值最低;激光功率分别为P=20%,P=24%,P=28%的情况下,当激光扫描速度v=750 mm/s时得到的样件表面粗糙度值最低;激光功率分别为P=32%,P=36%,P=40%的情况下,当激光扫描速度v=1250 mm/s时得到的样件表面粗糙度值最低。激光功率为P=20%,激光扫描速度v=500 mm/s时,对比3种不同实验环境下的抛光效果发现,水下激光抛光表面粗糙度值最低,其次是水下超声波激光抛光,最后是空气中激光抛光。激光扫描速度v=500 mm/s时,随着激光功率的增加,水下激光抛光和水下超声波辅助激光抛光的表面粗糙度值先减小后增大。样件表面粗糙度值与激光功率或激光扫描速度紧密相关。水对激光抛光后材料表面质量的提升效果明显,超声振动也起到了一定的辅助作用。The objective is to study the effect of laser polishing on the surface roughness of(FeCoNi)_(86)Al_(7)Ti_(7)high-entropy alloy under different environments,and to analyze the surface quality.The method controls other experimental factors unchanged through the single variable method,only changes a single variable,such as laser power,laser scanning speed,and experimental environment,and compares the surface quality of the laser polished sample with the surface roughness value as the evaluation index.Laser confocal microscopy was used to measure roughness,observe three-dimensional morphology,and analyze the surface quality after polishing.Results when the laser scanning speed of laser polishing in air were unchanged at v=500 mm/s,v=750 mm/s and v=1000 mm/s,the surface roughness value obtained by laser power P=24%was the lowest.When the laser scanning speed is controlled at v=1250 mm/s and v=1500 mm/s,the surface roughness value of the sample obtained by laser power P=40%is the lowest.The laser power was unchanged P=20%,P=24%and P=28%,respectively,and the roughness value obtained by the laser scanning speed v=750 mm/s was the lowest.When the laser power is P=32%,P=36%and P=40%,respectively,the laser scanning speed v=1250 mm/s and the surface roughness value is the lowest.When the laser power is P=20%and the laser scanning speed v=500 mm/s,the surface roughness value of underwater laser polishing is the lowest in three different experimental environments,followed by underwater ultrasonic laser polishing,and finally laser polishing in air.When the laser scanning speed is v=500 mm/s,with the increase of laser power,the roughness value of underwater laser polishing and underwater ultrasonic assisted laser throwing first decreases and then increases.The conclusion is that the surface roughness value of the sample is not proportional or linear to the laser power or laser scanning speed,but there is a certain range to achieve the best laser polishing quality.Water has a great influence on the surface quality of the material

关 键 词：高熵合金 激光抛光 激光参数 实验环境 表面粗糙度 

分 类 号：TG176[金属学及工艺—金属表面处理]