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首页> 外文期刊>International Journal of Electrochemical Science >Corrosion Resistance of Super-Hydrophobic Coating on AZ31B Mg Alloy
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Corrosion Resistance of Super-Hydrophobic Coating on AZ31B Mg Alloy

机译：AZ31B镁合金上超疏水涂层的耐蚀性

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A super-hydrophobic coating was prepared on AZ31B Mg alloy in this paper. Electroless Ni-P coatingas the inner layer was deposited on the AZ31 substrate via an electroless planting process, and Cu waselectroplated as the intermediate layer. Then, the electroplating Ni method was employed to form themicroano structure, and the super-hydrophobic coating was prepared after the composite coatingmodified by stearic acid. The modified coating exhibited super-hydrophobic properties with a staticwater contact angle of 155°. Potentiodynamic polarization and electrochemical impedancespectroscopy (EIS) tests were conducted in 3.5 wt.% NaCl solution at room temperature. The testresults indicated that the corrosion resistance of AZ31 was improved significantly by this superhydrophobic coating. The super-hydrophobic samples had much more corrosion resistance incomparison with freshly prepared samples.
机译：本文在AZ31B镁合金上制备了超疏水涂层。作为内层的化学镀Ni-P涂层通过化学镀工艺沉积在AZ31衬底上，并且电镀铜作为中间层。然后，采用电镀镍法形成微纳米结构，并在硬脂酸改性复合涂层后制备了超疏水涂层。改性涂层表现出超疏水性，静态水接触角为155°。在室温下在3.5 wt％的NaCl溶液中进行电位动力学极化和电化学阻抗谱（EIS）测试。测试结果表明，该超疏水涂层显着提高了AZ31的耐腐蚀性。与新制备的样品相比，超疏水样品的耐腐蚀性更高。

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