材料工程2024，Vol.52Issue(4)：138-145,8.DOI:10.11868/j.issn.1001-4381.2022.000602
镁合金表面不同MOF超疏水涂层的耐蚀行为
Corrosion resistance behavior of different MOF superhydrophobic coatings on magnesium alloy surface
摘要
Abstract
In order to study the corrosion resistance of three different superhydrophobic coatings(MZS-1,MZS-2 and ZnO@ZIF-8)on AZ91D magnesium alloy surface in 5%(mass fraction)NaCl solution.The microstructure,wettability and corrosion resistance of the superhydrophobic composite coating were tested and characterized by field emission scanning electron microscope,static contact angle tester,electrochemical workstation and salt spray tester,respectively.The results show that the corrosion of the superhydrophobic coatings does not occur until 192 h after salt spray treatment among the three types of superhydrophobic coatings,and the corrosion of the MZS-1 superhydrophobic coating is the most serious.The surface pitting of the MZS-2 superhydrophobic coating doesn't occur until 240 h later,and the contact angle is still high after salt spray treatment,so the corrosion resistance of the MZS-2 composite coating is the best.The polarization curve tests indicate that the corrosion current density of three superhydrophobic coatings are still one order of magnitude lower than that of the metal matrix after salt spray treatment for 240 h,showing excellent corrosion resistance.The superhydrophobic coating can effectively increase the corrosion resistance of metal materials.It can effectively prevent the infiltration of corrosive ions and provide long-term protection for the matrix because of its water repellency.关键词
镁合金/MOF/超疏水涂层/疏水稳定性/耐蚀行为Key words
magnesium alloy/MOF/superhydrophobic coating/hydrophobic stability/corrosion resistance behavior分类
矿业与冶金引用本文复制引用
刘金玉,张志远,王东,蒋世权,温玉清,尚伟..镁合金表面不同MOF超疏水涂层的耐蚀行为[J].材料工程,2024,52(4):138-145,8.基金项目
广西自然科学基金项目(2020GXNSFAA159011) （2020GXNSFAA159011）
