Microstructure and phase evolution during the dealloying of bi-phase Al–Ag alloy
Source abstract
Abstract
The chemical dealloying of bi-phase Al-35Ag alloy has been investigated within the parting limit. The dealloying of α-Al(Ag) and AgAl commenced simultaneously, and all α-Al(Ag) and part of AgAl were dealloyed, leaving residual AgAl to be dealloyed afterwards. The dealloying of the residual AgAl is associated with vacancy controlled mechanism and diffusion of Al atoms. It is revealed that the diffusions of the Al and Ag atoms during dealloying are significant. The Ag skeletons formed at the initial stage, and became coarsened gradually with a time dependence of d ∝ t, illustrating the vital role of diffusion of Ag atoms.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanoporous metals and alloys · Anodic Oxide Films and Nanostructures
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