In the present research, AZ31 magnesium alloy was treated by electrochemical methods in Na₂SiO₃-KOH-KF and KOH-KF electrolytes, and the morphological features of films formed on magnesium alloy were assessed. Besides, the effect of Mg surface features on interlaminar failure load, failure mode and galvanic corrosion resistance of CFRP/Mg laminates were investigated. The results show that removal of silicate in the Na₂SiO₃-KOH-KF electrolyte can cause the transition of conversion film from ceramic-like oxide film to pitted oxide film. The pitted oxide film can effectively enhance the peel strength of CFRP/Mg laminates compared with the ceramic-like oxide film, and an average enhancement of 6.5 times was observed. The pitted oxide film on magnesium can provide an excellent protection against the galvanic corrosion in CFRP/Mg laminates as the ceramic-like oxide film.

在本研究中，通过电化学方法在Na ₂ SiO ₃ -KOH-KF和KOH-KF电解质中处理AZ31镁合金，并评估了在镁合金上形成的膜的形貌特征。此外，研究了镁表面特征对CFRP / Mg层合板的层间破坏载荷，破坏模式和耐电偶腐蚀的影响。结果表明，Na ₂ SiO ₃中硅酸盐的去除-KOH-KF电解质会导致转化膜从陶瓷状氧化膜过渡到点蚀氧化膜。与陶瓷状氧化膜相比，点蚀氧化膜可以有效地增强CFRP / Mg层压板的剥离强度，并且观察到平均增强6.5倍。镁上的点蚀氧化膜可为CFRP / Mg层压板中的陶瓷类氧化膜提供出色的电偶腐蚀防护。