利用自制的离心高速电沉积实验装置,研究了镀液温度、镀液pH值、电流密度、镀液中SiC浓度和阴极旋转速度对Ni-SiC复合镀层中SiC含量的影响;同时还对镀层中SiC微粒的分布情况及镀层的性能进行了研究.结果表明:温度、电流密度、镀液中的SiC含量及阴极旋转速度对镀层中复合粒子的含量有显著的影响,而pH值对镀层中SiC含量影响不大.利用离心高速电沉积方法能够制备出高体积分数的、微粒分布均匀的Ni-SiC复合镀层.所制备的高体积分数的Ni-SiC复合镀层硬度和耐磨性能优于普通槽镀镀层.
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