纳米碳化钛用量对电镀铁-碳化钛复合镀层性能的影响  

Effect of nano-TiC dosage on properties of electroplated Fe–TiC composite coating

作　　者：傅云徉 朱新河[1] 董文仲 尚少伟 张焯凯 刘耕硕 FU Yunyang;ZHU Xinhe;DONG Wenzhong;SHANG Shaowei;ZHANG Zhuokai;LIU Gengshuo(School of Marine Engineering,Dalian Maritime University,Dalian 1160026,China)

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026

出　　处：《电镀与涂饰》2022年第5期303-308,共6页Electroplating & Finishing

摘　　要：在镀铁液中添加0~7 g/L纳米TiC颗粒(平均粒径50 nm),在45钢基体上电镀Fe-TiC复合镀层。采用X射线衍射仪(XRD)、扫描电镜(SEM)、能谱仪(EDS)、显微硬度计、摩擦磨损试验机和电化学工作站研究了TiC颗粒质量浓度对复合镀层的物相结构、显微硬度、抗摩擦磨损性能、抗粘着磨损性能及耐腐蚀性能的影响。结果表明,Fe-TiC复合镀层的各项性能均优于Fe镀层。随镀液中纳米TiC颗粒的质量浓度增大,镀层的微观结构、抗摩擦磨损性能和抗粘着性能先改善后变差,显微硬度和TiC含量先升高后降低。当镀液中纳米TiC质量浓度为5 g/L时,所得的Fe-TiC复合镀层综合性能最佳。Fe-TiC composite coatings were electroplated on 45 steel substrate in a bath containing 0-7 g/L of TiC nanoparticles with an average diameter of 50 nm.The effect of the mass concentration of TiC particles in bath on the phase structure,microhardness,frictional wear resistance,adhesive wear resistance,and corrosion resistance of composite coating were studied by using X-ray diffractometer(XRD),scanning electron microscope(SEM),energy-dispersive spectrometer(EDS),microhardness tester,friction and wear tester,and electrochemical workstation.The results showed that Fe-TiC composite coating featured better properties than Fe coating.With the increasing of the mass concentration of TiC particles in bath,the microstructure,frictional wear resistance,and adhesive wear resistance of Fe-TiC composite coating became better initially and then worse,while the microhardness and TiC content were increased initially and then decreased.The Fe-TiC composite coating prepared with 5 g/L of TiC had the best comprehensive properties.

关 键 词：铁 纳米碳化钛颗粒 复合电镀 微观结构 摩擦磨损 

分 类 号：TQ153.2[化学工程—电化学工业]