Protection against corrosion in marine environments of AA6060 aluminium alloy by cerium chlorides

Effect of Nd3+ Ion Concentration on the Corrosion Resistance of API X70 Steel in Chloride‐Rich Environments

“…It has been recognized that rare earth salts are low-toxicity compounds whose average lethal dose (LD50) is similar to that of sodium chloride (NaCl) [1][2][3]; therefore, the interest in the use of rare earths has emerged as an alternative to replace those toxic and highly carcinogenic corrosion inhibitors that affect both people and the environment, and many of these dangerous inhibitors are based on chromates (CrO 2− 4 ), mercurate, nitrite, and alkynol [4]. Most of the studies have been reported based on the use of both Ce and La salts as corrosion inhibitors, in the form of either chlorides, nitrates, or other salts [2,[4][5][6][7][8][9]. Many of these studies have been carried out in chloride-rich solutions, and the excellent corrosion inhibiting capacity of rare earth salts has been attributed to the high reactivity of rare earths.…”

“…In particular, the best anticorrosive properties have been detected mainly on light alloys, such as alloys based on aluminum, magnesium, and zinc [7][8][9][10][11][12][13][14][15][16][17]. However, some studies on iron-base alloys have also shown that rare earths and their compounds are capable of inhibiting the iron corrosion [4,[18][19][20].…”

Characteristics of Cr(III)-based Conversion Coating Solution to Apply Aluminum Alloys for Improving Anti-corrosion Properties

“…7) Conversion coatings prepared using non-Cr(VI) solutions, such as those containing titanium, zirconium, molybdenum, cerium, and trivalent chromium, exhibit low pollution and toxicity; in addition, these coatings are harmless to humans; hence, they have been widely developed. [8][9][10][11][12][13] Trivalent chromate coatings are attracting attention as an advantageous alternative for commercial applications because their treatment solutions are significantly less toxic than those containing hexavalent chromium compounds. Typically, as compared to hexavalent chromium coatings, the trivalent chromium coatings exhibit low corrosion resistance, 14) albeit the addition of other substances into the coating solution results in improved corrosion resistance.…”

Electrochemical investigation of the epoxy nanocomposites containing MnAl2O4 and CoAl2O4 nanopigments applied on the aluminum alloy 1050

“…[1][2][3][4] Therefore, they are catalytic sites for the cathodic reactions and nucleation of pits. [5][6][7] AA1050 has been used in conventional engineering applications, i.e., architectural, automotive industries, containers, and equipment for the food and chemical industries, where corrosion resistance is required and the mechanical strength is relatively unimportant. Therefore, the improvement of the corrosion resistance of AA1050 has been under the attention of the researchers in recent years.…”