CAJ | 학술논문

利用无铬阳极氧化技术在镁-锂合金表面生成了阳极氧化膜,通过扫描电镜、X射线衍射、极化曲线和电化学阻抗谱等测试技术对氧化膜进行了表面形貌、晶相组成和耐蚀性能的研究.讨论了在基本电解液里添加植酸对氧化膜性能的影响.研究结果表明:基本电解液中加入植酸后获得的氧化膜表面形貌没有得到很大改善,仍然存在孔洞;当植酸的质量浓度达到10.0 g/L时,可得到表面光滑亮白、耐蚀性最好的阳极氧化膜.
이용무락양겁양화기술재미-리합금표면생성료양겁양화막,통과소묘전경、X사선연사、겁화곡선화전화학조항보등측시기술대양화막진행료표면형모、정상조성화내식성능적연구.토론료재기본전해액리첨가식산대양화막성능적영향.연구결과표명:기본전해액중가입식산후획득적양화막표면형모몰유득도흔대개선,잉연존재공동;당식산적질량농도체도10.0 g/L시,가득도표면광활량백、내식성최호적양겁양화막.
An anodic film was formed on the surface of Mg-Li alloy by chrome-free anodizing technology, and the morphology, crystal composition and corrosion resistance of the film were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), polarization curves and electrochemical impedance spectroscopy (EIS). The effects of adding phytic acid to the basic electrolyte on the property of anodic film are discussed. The results show that the morphology of the film has no obvious improvement after addition of phytic acid to the basic electrolyte, still with pores;when the mass concentration of phytic acid reaches 10.0 g/L, a smooth, bright and white anodie film with best corrosion resistance can be obtained.