| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10227059 | Corrosion Science | 2018 | 43 Pages |
Abstract
7075 Al alloy was PEO-treated in a silicate based electrolyte containing 3â¯g l-1 potassium titanyl oxalate using unipolar and bipolar pulsed current waveforms. The coating formed by the bipolar waveform with the wider cathodic pulses showed volcano-like surface morphology with no evidence of large pores at the metal/coating interface. It revealed the highest corrosion performance due to the synergistic effect of TiO2 incorporation and structural/morphological features along with a better passivation behavior indicating no pitting susceptibility. For this coating, the tribocorrosion tests showed no potential drop during sliding under 1â¯N with the lowest volume loss of 0.022 mm3.
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Authors
Ehsan Akbari, Francesco Di Franco, Paolo Ceraolo, Keyvan Raeissi, Monica Santamaria, Amin Hakimizad,