Y_(2)O_(3)纳米颗粒对电镀Ni-W涂层组织结构和电化学腐蚀性能的影响  

Effect of Y_(2)O_(3) Nanoparticle on Microstructure and Electrochemical Corrosion Properties of Electroplated Ni-W Coating

作　　者：韩雨辰 邢士龙 姜传海[2] HAN Yuchen;XING Shilong;JIANG Chuanhai(Dandong Haoyuan Instrument Co.,Ltd.,Dandong 118009,China;School of Materials Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]丹东浩元仪器有限公司,丹东118009 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《机械工程材料》2021年第5期22-26,共5页Materials For Mechanical Engineering

摘　　要：在添加不同含量Y_(2)O_(3)纳米颗粒(质量浓度分别为0,5,10,20 g·L^(-1))的电镀溶液中沉积Ni-W合金涂层,研究了Y_(2)O_(3)纳米颗粒的加入对涂层显微组织、微观形貌和电化学腐蚀性能的影响。结果表明:Y_(2)O_(3)纳米颗粒的添加减少了涂层表面结节状结构,细化了涂层晶粒,增大了微观应变;当Y_(2)O_(3)纳米颗粒的质量浓度在5~10 g·L^(-1)时,所得涂层的表面粗糙度小于未添加纳米颗粒涂层的,但当质量浓度增至20 g·L^(-1)时,表面粗糙度高于未添加纳米颗粒涂层的;Y_(2)O_(3)纳米颗粒的添加提高了涂层的耐电化学腐蚀性能,并且当Y_(2)O_(3)纳米颗粒的质量浓度为10 g·L^(-1)时,涂层的耐电化学腐蚀性能最优。The Ni-W alloy coating was deposited in the electroplating solutions with different content(mass concentration of 0, 5, 10, 20 g·L^(-1)) of Y_(2)O_(3) nanoparticles. The influence of Y_(2)O_(3) nanoparticle addition on the microstructure, micromorphology and electrochemical corrosion properties of the coating was studied. The results show that the addition of Y_(2)O_(3) nanoparticles reduced the surface nodular structures of the coatings, refined the grains, and increased the microscopic strains. When the mass fraction of Y_(2)O_(3) nanoparticles was between 5-10 g·L^(-1), the surface roughness of the coating was lower than that without nanoparticles;when the mass fraction of the nanoparticles increased to 20 g·L^(-1), the surface roughness was larger than that without nanoparticles. The addition of Y_(2)O_(3) nanoparticles improved the electrochemical corrosion resistance of the coating. When the mass fraction of the nanoparticles was 10 g·L^(-1), the coating had the best electrochemical corrosion resistance.

关 键 词：电化学沉积 组织结构 Ni-W合金涂层 耐电化学腐蚀性能 

分 类 号：TB31[一般工业技术—材料科学与工程]