超声喷丸对镁合金表面高熵合金涂层组织与性能的影响  

Effect of ultrasonic shot peening on microstructure and properties of high entropy alloy coating prepared on magnesium alloy

作　　者：李如庆 王世宇 闫福铎 郭鹏宇 杨会凯 赵金阳 殷凤仕[1] Li Ruqing;Wang Shiyu;Yan Fuduo;Guo Pengyu;Yang Huikai;Zhao Jinyang;Yin Fengshi(School of Mechanical Engineering,Shandong University of Technology,Zibo Shandong 255000,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255000

出　　处：《金属热处理》2025年第3期291-296,共6页Heat Treatment of Metals

摘　　要：研究了超声喷丸强化对镁合金表面制备的NiCoAlFeCrMoSi高熵合金涂层的影响,以提高涂层的耐腐蚀性和耐磨性。结果表明,随超声喷丸时间的延长(0~800 s),涂层的表面粗糙度先降低后升高,孔隙率降低,耐蚀性和耐磨性呈现先增强后减弱趋势。当超声喷丸时间为400 s时,涂层具有最好的耐磨性和耐蚀性,与未经喷丸处理的涂层相比,表面平均硬度增大50 HV0.2,表面粗糙度降低了53.82%,腐蚀电流密度从3.012×10^(-5) A/cm^(2)降低至9.80μA/cm^(2),磨损体积减少了26.8%。Effect of ultrasonic shot peening on NiCoAlFeCrMoSi high entropy alloy coating prepared on the surface of magnesium alloy was investigated in order to enhance the corrosion and wear resistance of the coating.The results show that with the increase of ultrasonic shot peening time(0-800 s),the surface roughness of the coating decreases and then increases,the porosity decreases,and the corrosion resistance and wear resistance show a trend of first increasing and then decreasing.When the ultrasonic shot peening time is 400 s,the coating has the best corrosion resistance and wear resistance.Compared with the coating that is not shot peened,the average surface hardness is increased by 50 HV0.2,the surface roughness reduced by 53.82%,the corrosion current density decreases from^(3).012×10^(-5) A/cm^(2) to 9.80μA/cm^(2),and the wear volume is reduced by 26.8%.

关 键 词：涂层 超声喷丸 表面粗糙度 耐磨性 耐蚀性 

分 类 号：TG172.3[金属学及工艺—金属表面处理]