CAJ | 학술논문

研究AZ91D镁合金在邻苯二甲酸氢钾-硼酸盐碱性环保型电解液中的阳极氧化行为.考察邻苯二甲酸氢钾对阳极氧化膜层性能的影响,并利用扫描电镜(SEM)、X射线衍射(XRD)、动电位极化和电化学阻抗(EIS)进行分析表征.结果表明,邻苯二甲酸氢钾的浓度对阳极氧化成膜过程,氧化膜的表面形貌、厚度、相结构和耐腐蚀性能都有重要影响.在硼酸盐电解液中加入适量的邻苯二甲酸氢钾以后,制得的阳极氧化膜表面光滑、致密,与镁合金基体的结合力强,具有优异的耐腐蚀性能.
연구AZ91D미합금재린분이갑산경갑-붕산염감성배보형전해액중적양겁양화행위.고찰린분이갑산경갑대양겁양화막층성능적영향,병이용소묘전경(SEM)、X사선연사(XRD)、동전위겁화화전화학조항(EIS)진행분석표정.결과표명,린분이갑산경갑적농도대양겁양화성막과정,양화막적표면형모、후도、상결구화내부식성능도유중요영향.재붕산염전해액중가입괄량적린분이갑산경갑이후,제득적양겁양화막표면광활、치밀,여미합금기체적결합력강,구유우이적내부식성능.
A kind of environmental friendly anodizing routine for AZ91D magnesium alloy,based on an alkaline borate-potassium acid phthalate (KAP) electrolyte,was studied.The effect of KAP on the properties of the anodized film was investigated by scanning electron microscopy (SEM),X-ray diffraction (XRD),energy dispersive spectrometry (EDS),potentiodynamic polarization and electrochemical impedance spectroscopy (EIS),respectively.The results showed that the anodizing process,surface morphology,thickness,phase structure and corrosion resistance of the anodized film were strongly dependent on the concentration of KAP.In the presence of adequate KAP,a compact and smooth anodized film with excellent corrosion resistance was obtained.