The effects of potential and kinetic parameters on the formation of passivating noble metal rich surface layers during the selective dissolution of binary alloys

Corrosion-induced release of Cu and Zn into rainwater from brass, bronze and their pure metals. A 2-year field study

“…Different surface films of varying protective and barrier properties are formed, and the alloy may e.g. be susceptible to selective corrosion (Ateya and Pickering 1996;Erlebacher et al 2001;Wagner 1956). In the case of a perfect solid solution, the partial electrochemical properties of the alloy components differ, and there is always a nonzero thermodynamic probability of selective dissolution of the less noble metal (Marshakov 2002).…”

Atomic emission spectroelectrochemistry applied to dealloying phenomena: I. The formation and dissolution of residual copper films on stainless steel

“…These mechanisms have been recently reviewed [1]. Considerable research has been devoted to the selective dissolution of binary alloys either from the perspective of corrosion [2][3][4][5][6][7][8][9][10][11][12][13] or as a means of preparing porous metals [14], for example as catalyst supports [15]. There have been recent attempts to model the phenomenon [16].…”

Effect of pH on corrosion behavior of CuCrZr in solution without and with NaCl

“…Dealloying is largely dependent on the difference between the electrode potentials of the major constituent elements, atomic percent composition and on the kinetics of the solid-state diffusion of the alloyed elements [10]. Although CuCrZr contains a small amount of Cr and Zr (lower than 1.5 wt%), dealloying of CuCrZr still occurs at low pH as a result of the selective dissolution of Cr and Zr according to the Pourbaix diagrams.…”