The Study on Enhanced Superhydrophobicity of Magnesium Hydroxide Corrosion‐Resistant Coating on AZ31B after 8 Months,Advanced Engineering Materials

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The Study on Enhanced Superhydrophobicity of Magnesium Hydroxide Corrosion‐Resistant Coating on AZ31B after 8 Months
Advanced Engineering Materials ( IF 3.4 ) Pub Date : 2020-12-11 , DOI: 10.1002/adem.202001003
Yu Zhang ₁ , Yu Feng ₁ , Xue Meng ₁ , Jinlei Wang ₁ , Baolong Niu _{1,

2} , Hong Yan _{1,

2}

Affiliation

To improve the corrosion resistance of magnesium alloy, the superhydrophobic coating is prepared on AZ31B magnesium alloy by hydrothermal treatment and surface modification in the fluorosilane methanol solution. The effects of samples kept in sealable plastic bags for 8 months on the superhydrophobic properties and corrosion resistance of superhydrophobic samples are investigated. The results show that the water contact angle of the newly prepared superhydrophobic coating can reach 164° ± 2° and can be increased to about 180° after being stored for 8 months. Compared with the AZ31B matrix sample, the corrosion current density of the newly prepared superhydrophobic AZ31B sample is reduced by about four orders of magnitude. After 8 months of storage, the corrosion current density of the sample is further reduced by about one order of magnitude, and the corrosion voltage is further increased.

中文翻译：

8个月后AZ31B上氢氧化镁耐腐蚀涂层增强超疏水性的研究

为了提高镁合金的耐蚀性，在氟硅烷甲醇溶液中通过水热处理和表面改性在AZ31B镁合金上制备了超疏水涂层。研究了将样品保存在可密封的塑料袋中8个月对超疏水样品的超疏水性能和耐腐蚀性的影响。结果表明，新制备的超疏水性涂料的水接触角可以达到164°±2°，并且在储存8个月后可以增加到约180°。与AZ31B基体样品相比，新制备的超疏水AZ31B样品的腐蚀电流密度降低了大约四个数量级。保存8个月后，样品的腐蚀电流密度进一步降低了一个数量级，

更新日期：2020-12-11

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