AZ91D镁合金硅酸盐系微弧氧化着色膜制备工艺研究的中期报告摘要：本研究主要探讨了AZ91D镁合金表面的微弧氧化着色膜制备工艺，并对制备过程和表面形貌进行了初步研究。研究结果表明，采用硅酸盐系电解液，通过微弧氧化可以在AZ91D镁合金表面制备出较为均匀的氧化膜，且氧化膜的厚度和颜色可以通过调节工艺参数进行控制。制备出的氧化膜具有较为良好的热稳定性和耐腐蚀性能，并且在表面形貌上具有较高的粗糙度和孔隙率，这为后续的功能化改性提供了条件。关键词：AZ91D镁合金；微弧氧化；着色膜；硅酸盐系电解液Abstract：Inthisstudy,thepreparationprocessofmicro-arcoxidationcoloringfilmonAZ91Dmagnesiumalloysurfacewasinvestigated,andthepreparationprocessandsurfacemorphologywerealsostudiedpreliminarily.Theresultsshowedthatusingsilicateelectrolyte,arelativelyuniformoxidefilmcouldbepreparedonthesurfaceofAZ91Dmagnesiumalloythroughmicro-arcoxidation,andthethicknessandcoloroftheoxidefilmcouldbecontrolledbyadjustingtheprocessparameters.Thepreparedoxidefilmhadgoodthermalstabilityandcorrosionresistance,andhadhighroughnessandporosityinsurfacemorphology,whichprovidedconditionsforsubsequentfunctionalmodification.Keywords:AZ91Dmagnesiumalloy;micro-arcoxidation;coloringfilm;silicateelectrolyte