Effect of Quenching Condition on Corrosion Behavior of 6063 Al Alloy

DOI

10.2991/icmse-15.2015.340How to use a DOI?

Keywords

6063 Al, quenching rate, corrosion behavior

Abstract

The effect of quenching condition such as air cooled (AC) and water quenched (WQ) treatment on the corrosion behavior of 6063 Al alloy was investigated by optical microscope, field emission scanning electron microscope and electrochemical work station. The experimental results showed that the corrosion resistance of the AC 6063 Al alloy was much worse than that of the WQ one, and the corrosion form of the AC sample was intergranular corrosion (IGC) and pitting whereas only pitting was found on the WQ alloy. Slow quenching after solution heat treatment caused grain boundary precipitation Mg2Si, introducing IGC susceptibility. The corrosion mechanism of pitting was contributed to galvanic corrosion between coarse impurity phase particles (Al-Fe-Si) and matrix Al, and IGC resulted from galvanic corrosion between grain boundary precipitates and matrix Al.

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  - Chunlin He
AU  - Rui Li
AU  - Xiaodan Meng
AU  - Shuai Lü
AU  - Leipeng Xie
AU  - Guofeng Ma
AU  - Jianming Wang
PY  - 2015/12
DA  - 2015/12
TI  - Effect of Quenching Condition on Corrosion Behavior of 6063 Al Alloy
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1873
EP  - 1876
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.340
DO  - 10.2991/icmse-15.2015.340
ID  - He2015/12
ER  -