Electroless Ni-Cu-P ternary alloy deposits are prepared by addition of cupric sulfate and complex in eletroless Ni-P alloy plating bath.

• 为提高钕铁硼表面镀层的耐蚀性,使其具有更高的经济附加值,采用在化学镀镍磷合金液中添加适量的铜离子及其复合络合剂,制得镍铜磷三元合金。