工艺参数对Ni-SiC纳米镀层SiC粒子复合量的影响

发布时间：2018-04-17 03:04

本文选题：Ni-SiC + 纳米镀层　；参考：《功能材料》2017年09期

【摘要】：采用超声波辅助电沉积方式,在45钢表面制备了Ni-SiC纳米复合镀层。根据阴极电流密度、PH值和搅拌速度对Ni-SiC纳米复合镀层SiC粒子复合量的影响,获取Ni-SiC纳米复合镀层最佳条件的工艺参数;并利用扫描电镜(SEM)、高分辨率透射电镜(HRTEM)研究工艺参数对Ni-SiC纳米复合镀层表面形貌和微观组织结构的影响。结果表明,获取Ni-SiC纳米复合镀层最佳工艺参数为阴极电流密度6A/dm~2,pH值=4,搅拌速度300r/min。由最佳工艺参数制得的Ni-SiC纳米复合镀层表面呈胞状,SiC粒子粒径尺寸较小,其平均粒径为21.5nm。
[Abstract]:Ni-SiC nanocomposite coating was prepared on 45 steel surface by ultrasonic assisted electrodeposition.According to the effect of cathodic current density and stirring speed on the amount of Ni-SiC nano-composite coating SiC particles, the optimum process parameters of Ni-SiC nano-composite coating were obtained.The effects of process parameters on the surface morphology and microstructure of Ni-SiC nanocomposite coatings were studied by SEM and HRTEM.The results show that the optimal process parameters for obtaining Ni-SiC nanocomposite coating are cathode current density of 6A / dmm2p4 and stirring speed of 300r-1 路min.The average particle size of Ni-SiC nano-composite coating was 21.5 nm.
【作者单位】：东北石油大学机械科学与工程学院;川庆钻探公司长庆石油工程监督公司;
【基金】：国家自然科学基金资助项目(51474072)
【分类号】：TQ153

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