The composite calcium-phosphate coating on MA8 Mg alloy consisting of the inorganic porous basis sealed with polymer is suggested. To control the alloy resorption kinetics, the coating obtained by plasma electrolytic oxidation is modified with superdispersed polytetrafluoroethylene using electrophoretic deposition (EPD). Protective properties and morphology evolution as a result of surface treatment and corrosion propagation are examined by EIS, PDP, hydrogen evolution tests, SEM, EDX and XRD analysis. The obtained coatings are investigated at mechanistic level using SVET and local pH measurements. EPD composite coating decreases electrochemical activity of the sample in minimum essential medium and ensures the material biocompatibility.

提出了在MA8 Mg合金上的复合磷酸钙涂层，该涂层由聚合物密封的无机多孔基体组成。为了控制合金的吸收动力学，通过等离子电解氧化获得的涂层通过电泳沉积（EPD）用超分散的聚四氟乙烯改性。通过EIS，PDP，氢析出试验，SEM，EDX和XRD分析检查了由于表面处理和腐蚀扩散而导致的保护性能和形态演变。使用SVET和局部pH值在机械水平上研究获得的涂层。EPD复合涂层降低了样品在最小基本介质中的电化学活性，并确保了材料的生物相容性。