Anodic polarization behaviour of ion implanted aluminum in 3.5 wt.% NaCl electrolyte

Review—Corrosion-Resistant Metastable Al Alloys: An Overview of Corrosion Mechanisms

“…II has been performed on the Al alloys to achieve a supersaturated solid solution of unconventional alloying elements, such as transition metals. 15,[21][22][23][24][25][26] The corrosion resistance of the Al alloys after ion implantation of Mo, [21][22][23][24][25]27 Ar, 28 Cr, 29 Ta, [30][31][32] Ni, 27 Pb, 27 Si, 24 Nb, 24 Zr, 24 Cr, 26 Ti 26 and V 26 has been studied and a significant improvement in the corrosion resistance have been observed. Table I shows a compendium of ion-implanted Al alloys.…”

“…Natishan et al 24 envisioned that an element capable of producing an oxide with a lower pH of zero charge than Al 2 O 3 , should diminish the electrostatic adsorption of Cl − and therefore retard the passive film breakdown. Ability to increase passive film thickness 21 or enrichment of the implanted ions in the passive film 22,26 were some of the other criterion for the choice of the elements.…”

Effect of V Content on Corrosion Behavior of Al-V Alloys Produced by Mechanical Alloying and Subsequent Spark Plasma Sintering

“…Recent research has shown that the corrosion and mechanical performance of Al alloys can be optimized by suitable processing routes along with a specific composition. For example, nanocrystalline Al alloys produced by non-conventional techniques such as sputter deposition, [1][2][3][4][5][6][7] ion implantation, [8][9][10][11][12] and high energy ball milling (HEBM) [13][14][15][16][17][18] exhibit excellent corrosion resistance. Among these techniques, HEBM has received significant attention because it is simple, economical, and capable of application in industrial production.…”