Composite coating of Ni-Cu-P alloys con-taining TiN particles was prepared by electroless technique based on the excellent wear resistance of TiN and better anti-corrosion property of electroless Ni-Cu-P alloys on carbon steel surfaces.Electrochemical method which uses Tafel polarization curves was carried out to study the corrosion performance of the coating.The results indicate that the anti-corrosion ability of the Ni-Cu-P-TiN com-posite coating(7.92 μA)is almost doubled compared with that of the as-coated Ni-P(13.60 μA).Furthermore,heat treatment results in first increase and then decrease in anti-corrosion ability.And the Ni-Cu-P-TiN composite coat-ings heat-treated for 40 min have maximum hardness of HV 960 and a self-corrosion current of 28.20 μA.The friction coefficient of electroless composite coatings was measured by end-facing tribometer.It is found that the friction coefficient of the Ni-Cu-P-TiN composite coating decreases apparently compared with those of Ni-P and Ni-Cu-P electroless coatings.

Hong-Ming Zhou;Yang Jia;Jian Li;Shu-Heng Yao

School of Materials Science and Engineering,Central South University,Changsha 410083,China;Hunan Zhengyuan Institute for Energy Storage Materials and Devices,Changsha 410083,China

稀有金属（英文版）

[1]Hong-Ming Zhou;Yang Jia;Jian Li;Shu-Heng Yao-.Corrosion and wear resistance behaviors of electroless Ni-Cu-P-TiN composite coating)[J].稀有金属（英文版）,2022(09):3233-3238

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