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Kinetics of Metallic Electrochemical Impregnation of Porous Anodic Oxidation Layer of 1050 and 2024 Aluminium Alloys
Author(s) -
Arurault L.,
Bes R.S.
Publication year - 2003
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200300252
Subject(s) - materials science , anodizing , aluminium , metal , kinetics , electrochemistry , porosity , layer (electronics) , anode , corrosion , metallurgy , limiting current , chemical engineering , electrode , composite material , chemistry , physics , quantum mechanics , engineering
Logarithmic growth kinetics with a rate law similar to the Elovich law account for metallic alternating‐current electrochemical impregnation of the porous part of the anodised layer on aluminum alloys 1050A and 2024T3. The relation is based on the assumption that the rate of the limiting step decreases as a function of the amount of metal already deposited, which exerts a hindering effect on the reduction of aquatized metal cations; it is valid independent of the structure of the porous layer (columnar or spongy) and the deposited metal (Ni or Zn).