We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Enhanced corrosion protection of AZ31B magnesium alloy by MgAl-LDHs composite coatings double-doped with imidazolium ionic liquid and sodium dodecylbenzenesulphonate.
- Authors
Liu, Yingxue; Huangfu, Huijie; Gao, Shuai; Guo, Xugeng; Wang, Li
- Abstract
Herein, we prepare two types of MgAl-LDHs coatings single-doped by imidazolium ionic liquid 1-decyl-3-methylimidazolium bromide ([Demim]Br) or sodium dodecylbenzenesulphonate (SDBS) and double-doped by [Demim]Br and SDBS on AZ31B Mg alloy by using an in-situ hydrothermal treatment. Their surface morphology and corrosion resistance immersed in 3.5 wt-% NaCl solution are explored. Our results suggest that the double doping of [Demim]Br and SDBS will change the surface morphology of the coating and a uniform and dense film is observed in the double-doped MgAl-LDHs, which is denser than those of the two single-doped MgAl-LDHs coatings, thus providing a superior corrosion resistance. Such an improvement can be ascribed to the synergetic inhibition effect of [Demim]Br and SDBS against the corrosion of the Mg alloy substrate. More importantly, the charge transfer resistance of the sample coated with the double-doped MgAl-LDHs is still high after 3 d of immersion, benefiting from the excellent self-healing effect.
- Subjects
COMPOSITE coating; LIQUID sodium; MAGNESIUM alloys; IONIC liquids; CORROSION in alloys; SURFACE morphology
- Publication
Corrosion Engineering, Science & Technology, 2023, Vol 58, Issue 3, p259
- ISSN
1478-422X
- Publication type
Article
- DOI
10.1080/1478422X.2023.2165634