在镁合金上以硫酸镍和锡酸钠为主盐沉积了镍锡磷镀层.探讨了在碱性镀液中,以柠檬酸钠和碳酸钠为配位剂对化学镀镍锡磷镀层性能的影响.结果表明:此三元合金镀层为非晶态,含2.48%Sn,8.51%P,平整致密;柠檬酸钠与镍生成了稳定常数大的配位化合物,有利于镀层的快速生长;锡元素的加入增强了二元镍磷合金的耐蚀性.
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