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用场发射扫描电子显微镜、X射线光电子能谱仪及X射线衍射仪分析Ni-P合金镀层表面的形貌、组成及结构，用恒电位极化曲线法研究了Ni-P合金镀层在Na2S溶液中的腐蚀行为，通过重量法测试了Ni-P合金镀层在不同温度、不同质量分数Na2S溶液中的腐蚀速率.结果表明：Ni-P合金镀层为非晶态镀层,表面具有胞状结构；在Na2S质量分数一定的条件下，Ni-P合金镀层腐蚀的阳极过程随着温度的升高，钝化区域逐渐变窄.

Surface morphologies,ingredients and structure of electroless plating Ni-P alloy coatings were investigated using field emission scanning electron microscope,X-ray photoelectron spectrometer and X-ray diffraction instrument,the corrosion behavior of Ni-P alloy coatings in Na2S solution was studied by potentiostatic polarization method and the corrosion rate of Ni-P alloy coatings was measured in different concentration of Na2S solutions at different temperatures by gravimetric method.Experiment results indicate that the amorphous Ni-P plating is deposited with cellular structure on the surface.In the same concentration of Na2S solution,the passivation area of the anodic process of corrosion reaction of the Ni-P alloy coatings narrowed gradually with increasing temperature.