The Anode Oxidation Technics and the Characteristics of the Films of ZL101A Al-Si Alloy

Abstract:

ZL101A Al-Si Alloy was processed of anode oxidation by DC Pulsed power, the film thickness and micro-structure were investigated with the electrolyte concentration, oxidation time and other technical parameters; the chemical composition of the film, the phase composition and the micro-hardness were tested. The results showed that the better technical parameters of making oxide film were:anode voltage was 16 V, current density was 1 A/dm², sulfuric acid concentration was 140 g/L, oxidation time was 30 min, film thickness was 12 μm; the Al phase, Si phase and β-Al₂O₃ phase were showed by XRD of the film; and the micro-hardness of the film was 288 HV_0.05.

• Periodical: Advanced Materials Research (Volume 893)
• Pages: 566-569
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.893.566
• Online since: February 2014
• Authors: Guang Jin*, Sen Li, Chang Sheng Lou
• Keywords: Anode Oxidation, Film Thickness, Microhardness, Phase Composition, ZL101A Al-Si Alloy

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