The invention belongs to the technical field of magnesium alloy surface treatment, and particularly relates to a method for preparing a magnesium alloy colored surface coating in one step, an obtained magnesium alloy and application of the magnesium alloy. The method comprises the following steps: 1) preparing a mixed aqueous solution of NaAlO2 and/or NaOH; (2) putting the mixed aqueous solution of NaAlO2 and/or NaOH obtained in the step (1) into a corrosion-resistant reaction container, and then immersing a clean AZ91D magnesium alloy sample into the mixed aqueous solution of NaAlO2 and/or NaOH; 3) closing the bottle opening of the reactor, and carrying out a heating reaction at 95-105 DEG C under magnetic stirring for 3.5-4.5 h; and 4) cleaning the AZ91D magnesium alloy sample after the heating reaction to obtain the magnesium alloy with the colored surface coating. The corrosion-resistant colored coating is successfully prepared through a one-step hydrothermal method, and the method has the advantages of being simple, environmentally friendly and low in cost.
本发明属于镁合金表面处理技术领域,具体涉及一种一步制备镁合金彩色表面涂层的方法、得到的镁合金及其应用。该方法包括以下步骤:1)制备NaAlO2和/或NaOH的混合水溶液;2)将步骤1)得到的NaAlO2和/或NaOH的混合水溶液装入到耐腐蚀的反应容器中,再将清洁的AZ91D镁合金样品浸没到NaAlO2和/或NaOH的混合水溶液中;3)封闭反应器的瓶口,在磁力搅拌下进行95‑105℃的加热反应,加热时间为3.5‑4.5h;4)加热反应完后对AZ91D镁合金样品进行清洗,得到具有彩色表面涂层的镁合金。本发明通过一步水热法成功制备了耐腐蚀彩色涂层,该方法具有简单、环保和低成本的优势。
Method for preparing magnesium alloy colored surface coating in one step, obtained magnesium alloy and application of magnesium alloy
一种一步制备镁合金彩色表面涂层的方法、得到的镁合金及其应用
2023-10-13
Patent
Electronic Resource
Chinese
Magnesium alloy material and magnesium alloy surface anti-corrosion treatment method
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