Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8027366 | Surface and Coatings Technology | 2014 | 33 Pages |
Abstract
The influence of electric fields at different temperatures on the anodic oxide layer growth was studied on AA 5083. Barrier-type alumina layers showed a fair morphology with multiform pores. The diameter of dominating pores performed a transversal amplification from barrier-type layer to pore structure. The pore cells were perpendicular with column constriction near the second-phase particles and parallel with the layer growth. Both the barrier-type oxide layer and porous oxide layer perform excellent corrosion protection on aluminium substrate with the corrosion current density of 10â 10 A/cm2 and transfer impedance of 107 Ω cm2. The former leads to the more effective anti-corrosion property.
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Authors
J.Y. Wang, C. Li, C.Y. Yin, Y.H. Wang, S.L. Zheng,