为获得Ni-P-Ti3AlC2最佳施镀工艺，采用正交试验法对影响镀速的主要因素络合剂、表面活性剂、Ti3AlC2、pH值进行了研究和优化，对最佳工艺下的镀层进行了形貌、物相、显微硬度和耐磨性分析。结果表明：当质量浓度为15 g/L柠檬酸钠、10 g/L Ti3AlC2、1.5 g/L十二烷基硫酸钠、pH值为5.0时，镀速达到33.256μm/h，镀层表面光滑平整，镀速和镀层质量达到最佳；Ti3AlC2颗粒成功复合到Ni-P镀层中，复合镀层显微硬度和耐磨性分别是二元镀层的1.77和2.27倍。
In order to obtain the best technology of Ni-P-Ti3AlC2 electroless composite plating,main factors affecting the deposition rate,such as complexing agent,surfactant,Ni-P-Ti3AlC2 pH value,were studied through the orthogonal experiment. The surface morphology,phase,hardness and wear resistance of the plating obtained at the optimum condition are analyzed. The results show that the optimal operation conditions are as follows:15 g/L C6H5Na3O7.2H2O,10 g/L Ti3AlC2,1.5 g/L NaC12H25SO4, pH=5,with which the deposition rate reaches 33.256 μm/h and the plating surface is flat and smooth,indicating that the deposition rate and plating quality reach the optimum. The Ti3AlC2 particles are successfully deposited on the Ni-P coating. The microhardness and wear resistance are 1.77 and 2.27 times higher than those of the Ni-P plating,respectively.
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