Abstract
The electropolishing characteristic curves of rolled 8079 Al alloy in perchloric acid and ethanol solution from -25 °C to 25 °C are obtained. The optimal electropolishing conditions of the 8079 Al alloy with rolled are investigated by optical microscope. The result shows that the lower the electropolishing temperature is, the longer the electropolishing time is, and the time range and voltage range are wider. Furthermore, the calibration rate of the phase after electropolishing is higher than 97% investigated by Electron Back-Scatter Diffraction. The electropolishing effect of both 8079 Al alloy with cast and 8011 Al alloy (cast and rolled) is verified.
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