Fluoride ions as modifiers of the oxide layer produced by plasma electrolytic oxidation on AZ91D magnesium alloy

A universal electrolyte for the plasma electrolytic oxidation of aluminum and magnesium alloys

“…The amount of alkali content in the electrolyte for the oxidation of magnesium alloys can be reduced by using various additives [29]. In addition, there is an opinion that the addition of fluoride-containing compounds to the electrolyte significantly improves the quality of the oxide layer [21,[30][31][32][33].…”

Characterization of plasma electrolytic oxidation of magnesium alloy AZ31 in alkaline solution containing fluoride

“…Most popular electrolytes used for forming coatings on magnesium and its alloys are water solutions of sodium and potassium hydroxide, sodium silicate, sodium phosphate, and sodium aluminates [8][9][10][11][12]. Recent studies have shown that the addition of fluoride in these electrolytes can promote the formation of protective coatings with increased resistance to pitting corrosion and wear resistance [13][14][15].…”

Effects of NaOH Concentration on the Structure of PEO Films Formed on AZ31 Mg Alloy in PO43-and SiO32-Containing Aqueous Solution

“…플라즈마 전해산화 피막의 형 성 거동 및 산화피막의 특성은 전해질의 화학적 조 성, 농도 및 온도, 인가전류의 크기 및 형태 등의 조건에 영향을 받는다. 그 중, 전해액의 조성 및 농 도는 피막의 형성 및 특성에 결정적인 역할을 하며, 규산염 [7][8][9], 인산염 [10][11][12], 불소 [13][14][15][16] 및 산화티 타늄 [17], 산화세륨 [18], 이산화규소 [19,20] …”