Hydrophobic Mg(OH)₂/calcium myristate (Ca[CH₃(CH₂)₁₂COO]₂, CaMS) and Mg(OH)₂/magnesium myristate (Mg[CH₃(CH₂)₁₂COO]₂, MgMS) composite coatings were prepared on the alkali-treated AZ31 substrates via both electrodeposition and dipping methods. The morphologies, compositions, and constitutes of the coatings were investigated by using field-emission scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectrometry (FTIR) together with X-ray diffractometer (XRD). Furthermore, electrochemical (polarization and impedance spectroscopy) and hydrogen evolution tests were applied to evaluate the corrosion resistance. The wettability and adhesive strength of the composite coatings were characterized through water static contact angle (CA), sliding angle (SA), and nano-scratch tests. Results indicated that the better super-hydrophobicity, corrosion resistance, and adhesion were achieved via an electrodeposited process. The corrosion current density (i_corr) and hydrogen evolution rate (HER) of the electrodeposited coating were three and one orders of magnitude smaller than the substrate, implying a significantly improved corrosion resistance. This scenario was ascribed to the super-hydrophobicity of electrodeposited composite coating with a contact angle (CA) and slide angle (SA) of 159.2° ± 0.8° and 5.2° ± 0.8°, respectively. However, the dipped composite coating was adverse to the improvement of corrosion resistance and adhesion due to the dissolution of the underlying Mg(OH)₂ layer and smooth surface with less organic fatty acid salt (MgMS)

疏水性 Mg(OH) ₂ /肉豆蔻酸钙 (Ca[CH ₃ (CH ₂ ) ₁₂ COO] ₂ , CaMS) 和 Mg(OH) ₂ /肉豆蔻酸镁 (Mg[CH ₃ (CH ₂ ) ₁₂ COO] ₂, MgMS) 复合涂层是通过电沉积和浸渍方法在碱处理的 AZ31 基材上制备的。通过使用场发射扫描电子显微镜 (SEM)、X 射线光电子能谱 (XPS) 和傅里叶变换红外光谱 (FTIR) 以及 X 射线衍射仪 (XRD) 来研究涂层的形貌、成分和组成。 . 此外，应用电化学（极化和阻抗谱）和析氢测试来评估耐腐蚀性。通过水静接触角（CA）、滑动角（SA）和纳米划痕测试表征复合涂层的润湿性和粘合强度。结果表明，通过电沉积工艺实现了更好的超疏水性、耐腐蚀性和附着力。i _corr ) 和析氢速率 (HER) 比基材小三个又一个数量级，这意味着显着提高了耐腐蚀性。这种情况归因于电沉积复合涂层的超疏水性，接触角 (CA) 和滑动角 (SA) 分别为 159.2°±0.8° 和 5.2°±0.8°。然而，浸渍复合涂层由于下面的Mg(OH) ₂层的溶解和有机脂肪酸盐(MgMS)较少的光滑表面，不利于耐腐蚀性和附着力的提高。