工程车活塞杆用45~#钢电沉积Ni-WC纳米复合镀层的研究  

Investigation on Electrodeposition of Ni-WC Nano-composite Coating on 45~# Steel Piston Rod for Engineering Vehicle

作　　者：刘晓燕[1] 王爱兵[1] 贾丽娜[1] 

机构地区：[1]河北交通职业技术学院,河北石家庄050035

出　　处：《电镀与环保》2017年第6期5-7,共3页Electroplating & Pollution Control

摘　　要：在工程车活塞杆常用材料45#钢表面电沉积Ni-WC纳米复合镀层。分析了纳米复合镀层的表面形貌和物相结构,测试了纳米复合镀层的耐磨性和耐蚀性,并与45#钢的性能做比较。结果表明:纳米复合镀层表面较平整、均匀,结构较致密,主要由Ni相、WC相组成,Ni相的质量分数为81.25%,WC相的质量分数为6.53%,孔隙率低于0.5%,平均摩擦因数约为0.28;相同条件下,纳米复合镀层的腐蚀速率低于45~#钢的;纳米复合镀层能够提供有效的磨损防护和腐蚀防护,提高45~#钢的耐磨性和耐蚀性。Ni-WC nano-composite coating was electrodeposited on the surface of 45^# steel piston rod for engineering vehicle, the surface morphology and phase structure of nano-composite coating were analyzed, and the wear resistance and corrosion resistance of nano-composite coating were tested, and were compared with the properties of 45^# steel. Results showed that nanocomposite coating featuring smooth surface and compact structure, it was mainly composed of Ni phase and WC phase, the mass fraction of Ni phase was 81.25%, and the mass fraction of WC phase was 6.53%. The porosity was less than 0.5%, and the average friction coefficient of nano- composite coating was about 0. 28. Under the same conditions, the corrosion rate of nano- composite coating was lower than that of 45 ^# steel. Nano-composite coating can provide effective wear protection and corrosion protection, and then improve the wear resistance and corrosion resistance of 45^# steel.

关 键 词：Ni-WC纳米复合镀层 活塞杆 表面形貌 物相结构 耐磨性 耐蚀性 

分 类 号：TQ153[化学工程—电化学工业]