采用超声-电沉积 Ni-SiC 纳米镀层方法,在A3钢表面制得 Ni-SiC 纳米镀层。利用 CA 预测模型研究超声-电沉积 Ni-SiC 纳米镀层的显微组织结构。结果表明,在 Ni-SiC 纳米镀层中存在 Ni 和 SiC 相。随着超声波功率的增加,Ni-SiC 纳米镀层的显微组织更加致密、光滑。CA预测说明,在NC-1,NC-2和NC-3镀层中,镍晶粒的平均粒径分别为188.2,135.7和70.5 nm,SiC 粒子的平均粒径分别为105.4,80.9和36.2 nm。CA预测模型的预测结果与实测结果相差不大,最大误差为5.0%。
Ni-SiC nanocomposite coatings were prepared on steel A3 by ultrasonic-electrodeposition method. The microstructures of Ni-SiC nanocomposite coatings were investigated using CA model.The results illumi-nated that there was Ni and SiC phase in Ni-SiC nanocomposite coatings.And the coating had a compact and fine microstructure with increasing of the ultrasonic power.It was found that nickel grains in NC-1 ,NC-2 and NC-3 coatings were 188.2,135.7 and 70.5 nm,respectively,and that of SiC particles were 105.4,80.9 and 36.2 nm,respectively.CA model showed that there was little difference between the predicted and measured results,and the maximum relative error was 5 .0%.
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