Effect of solution concentration on sealing treatment of Mg-Al hydrotalcite film on AZ91D Mg alloy

Active corrosion protection by a smart coating based on a MgAl-layered double hydroxide on a cerium-modified plasma electrolytic oxidation coating on Mg alloy AZ31

“…Furthermore, layered double hydroxides (LDHs) have been widely investigated as nanocarriers because of their excellent ion-exchange capability [9][10][11][12][13]. Tedim et al [14] found that LDHs nitrate produced effective chloride nanotraps, and were sensitive to the chloride concentration in the bulk solution.…”

Sealing of anodized magnesium alloy AZ31 with MgAl layered double hydroxides layers

“…Therefore, surface treatments including anodizing, conversion lms, vapor deposition, ame or plasma spraying are considered to be other approaches to improve corrosion resistance. [6][7][8] As an industrial technology for surface protection, the anodizing process has been successfully used over many decades. 9 Nevertheless, the structures of anodic lms consist of an inner thin compact layer and an outer thick porous layer.…”

Anticorrosion Performance of LDH Coating Prepared by CO2 Pressurization Method

“…However, chromate is toxic to the environment and hazardous to human beings, leading to it being banned in recent years. Lately, focus has turned to conversion coating that contains no chromium [12,19,20], such as phosphate [21,22], phosphate-permanganate [23][24][25], stannate [26,27], vanadate [28,29], cerate [27,30], lanthanite [31], and LDHs surface coatings [32][33][34][35][36]. Of these, LDH surface coating, as an environmentally friendly coating, has attracted more attention as it brings no pollution to the environment.…”