The performances of Ni three-part alloy layer of elec-troless Ni-P and Ni-B plating and alloy layer of compound electroless Ni plating were described and their application in petrochemical industry was introduced.

• 对化学镀Ni-P、Ni-B、镍三元合金镀层及其复合化学镍合金镀层的特性进行了论述；对化学镀镍合金在石化工业中的应用进行了介绍.