Cerium conversion coating and sol-gel coating for corrosion protection of the WE43 Mg alloy

Eco-Friendly Sustainable and Responsive High-Performance Benzotriazole-Metal Organic Frameworks/Silica Composite Coating with Active/Passive Corrosion Protection on Copper

“…Surface morphologies of the coatings after immersion tests in a 3.5 wt % NaCl solution can be used to evaluate the anticorrosion abilities. − After immersion tests in 3.5 wt % NaCl solution, the superhydrophobic surface of the pure SiO 2 coating (Figure a) is severely corroded and particles and micropores are observed on the surface of SiO 2 coating. The coating gradually loses its protective effect.…”

Lanthanides: The Key to Durable and Sustainable Corrosion Protection

“…Here, the reversible conversion of Ce ions, that is shifting from C 3+ to C 4+ , resulted in the formation of Ce oxide/hydroxide precipitates that played a vital role in the defense mechanism and prohibited the corrosion process. The self-defense mechanism of the Ce layer is very efficient, irrespective of its placement in the coating, as Pereira et al further elaborated the effect of the Ce layer, deposited underneath the hybrid duplex CeP-Hyb coating, on WE43 Mg alloy. They tested the active protection of Ce compounds by calculating local EIS in the mapping mode (LEIM) test, where the response of the CeP-Hyb coating was recorded in the response of an artificial defect.…”

“…(d) AFM analysis (e) POL analysis of bare WE43C-T5Mg alloy, CeP coatings, hybrid coatings, and combination of CeP + hybrid coatings. [Reprinted with permission from ref . Copyright 2022, Elsevier].…”

Bonding, Structure and Uses of Metals

“…There is also research and development in magnesium alloys [23,24] especially in industrial applications. There is a study on corrosion prevention of alloys [25] , work on shape memory alloys mainly on engineering applications [26] and applying computer modeling on alloys [27] .…”