Dealloying of Al2CuMg in Alkaline Media

摘要: The anodic behavior of ( S‐phase ) samples in 0.1 M NaOH solution was investigated. Critical potential typical dealloying observed while sweeping the from open circuit direction. Theoretical estimates based on curvature effects alloy dissolution suggested development a porous structure with 2 nm average ligament size during initial stages process. A delicate balance between metal dissolution, ion solubility, and mass transport electrolyte appears to govern kinetics "pit" growth bicontinuous dealloyed microstructure containing flatter regions showing "Swiss cheese"‐like morphology as result long‐term dealloying. © 2000 Electrochemical Society. All rights reserved.