Effects of silica sol on boric-sulfuric acid anodic oxidation of Al alloy

DOI

10.2991/icmse-15.2015.257How to use a DOI?

Keywords

silica sol; boric-sulfuric acid anodic oxidation; Al alloy

Abstract

Al alloy anodized coating was prepared in boric-sulfuric acid with the addition of silica sol or not. The current and voltage transients of the anodizing process were collected by ZF-10B data collection instrument. The corrosion resistance was examined by neutral salt spray, electrochemical impedance spectroscopy (EIS) test and titrating test, respectively. Results showed that the addition of silica sol did not change weight, thickness and composition of the anodized coating significantly. However, the uniformity, fineness and surface morphology of the coating were improved. Moreover, corrosion resistance of the anodized coating was increased with the addition of silica sol. Meanwhile, it showed that nearly no damage on the fatigue properties of Al alloy substrate as compared with chromic acid anodizing and boric-sulfuric acid anodizing.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaoyu Yang
AU  - Hu Wei
PY  - 2015/12
DA  - 2015/12
TI  - Effects of silica sol on boric-sulfuric acid anodic oxidation of Al alloy
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1420
EP  - 1424
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.257
DO  - 10.2991/icmse-15.2015.257
ID  - Yang2015/12
ER  -