MoS_(2)浓度对电沉积Ni-P-MoS_(2)复合镀层性能的影响  

Effect of MoS_(2) concentration on properties of electrodeposited Ni-P-MoS_(2) composite coatings

作　　者：王帅 赵志浩 李天乐 李春玲 孙霜青 Wang Shuai;Zhao Zhihao;Li Tianle;Li Chunling;Sun Shuangqing(School of Materials Science and Engineering,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)材料科学与工程学院,山东青岛266580

出　　处：《电镀与精饰》2024年第12期33-39,共7页Plating & Finishing

摘　　要：针对工业生产中腐蚀与磨损的问题,采用电沉积的方法在Q235钢表面制备了Ni-P-Mo S_(2)复合镀层,研究了Mo S_(2)纳米颗粒的浓度对复合镀层形貌及性能的影响。研究表明,加入纳米颗粒后复合镀层表面的胞状结构增大,耐蚀性能增强,当Mo S_(2)浓度为4 g/L时阻抗值最大,为32 000Ω·cm^(2),并在盐雾试验20 d后升高至58 800Ω·cm2。随着Mo S_(2)浓度的升高,复合镀层硬度呈现先升高后降低的趋势,当浓度为4 g/L时硬度达到最高,为690.2HV,同时Mo S_(2)的加入可以改善镀层的摩擦学性能,相较于Ni-P镀层,复合镀层的摩擦系数和磨损量分别降低了39%和55%。Ni-P-MoS_(2) composite coatings was prepared on the surface of Q235 steel by electrodeposition method to solve the problems of corrosion and wear in industrial production,and the influence of the concentration of MoS_(2) nanoparticles on the surface morphology and properties of the composite coating was studied.The addition of nanoparticles is shown to increase the cellular structure on the surface of the composite coating and improve corrosion resistance.When the MoS_(2) concentration is 4 g/L,the impedance value reaches the maximum value of 32000Ω·cm^(2),and increased to 58800Ω·cm^(2) after 20 days of salt spray test.With the increase of MoS_(2) concentration,the hardness of composite coating shows a trend of first increasing and then decreasing.The highest hardness is 690.2 HV when the concentration is 4 g/L.And the addition of MoS_(2) can improve the tribological properties of the coating.Compared with Ni-P coating,the friction coefficient and wear of composite coatings are reduced by 39%and 55%.

关 键 词：电沉积 Ni-P复合镀层 耐蚀性能 摩擦学性能 

分 类 号：TG178[金属学及工艺—金属表面处理]