| Issue |
MATEC Web Conf.
Volume 109, 2017
2017 2nd International Conference on Materials Science and Nanotechnology (ICMSNT 2017) – 2017 2nd International Symposium on Material Science and Technology (ISMST 2017)
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 6 | |
| Section | Chapter 2: Material/Mechanical Behaviours During Materials Processing | |
| DOI | https://doi.org/10.1051/matecconf/201710902003 | |
| Published online | 31 May 2017 | |
Effects of Friction Stir Welding on Corrosion Behaviors of AA2024-T4 Aluminum Alloy
1 Department of Mechanical Engineering, Auckland University of Technology, Auckland, NZ
2 Department of Electromechanical Engineering, Shenyang Aerospace University, Shenyang, China
a Corresponding author: leiwng@sau.edu.cn
In this work, the corrosion behavior of welded joints of AA2024-T4 Al alloy produced by friction stir welding process has been investigated. Tests were performed in an aerated 3.5% NaCl aqueous solution with pH = 7 at 20±2°C. Corrosion rate and corrosion morphology of weld regions were evaluated and compared to those of the parent metal. The microstructure of weld nugget, thermomechanical affected zone, heated affected zone, and parent metal were analyzed using scanning electron microscopy and energy dispersive spectroscopy. It was observed that corrosion initiated at FSW related spots and the sizes of local corrosion increased with time.
© The Authors, published by EDP Sciences, 2017
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