Electrochemical Performances of Recycled AZ31 Magnesium Alloy in NaCl Solution

DOI

10.2991/edep-18.2018.51How to use a DOI?

Keywords

Recycled magnesium alloy, structure, electrochemical performance

Abstract

Recycled as-cast magnesium alloys were prepared by smelting method according to the nominal composition of AZ31 magnesium alloys. The structure and electrochemical properties of the recycled alloys were characterized and compared to those of the commercial as-cast AZ31 magnesium alloys. X-ray diffractometry patterns show that the main phases of the recycled alloy are α-Mg solid solutions and the recycled alloys present more Mg17Al12 second phases than the commercialized alloy. Polarization curves results obtained from electrochemical experiments in 5% NaCl solution indicate that the recycled alloy exhibits a bit higher corrosion current density than the commercialized alloy and similar negative equilibrium potential to the commercialized alloy. The recycled alloy performs the higher corrosion rate in 5% NaCl solution and the worse corrosion resistance than the commercialized alloy according to self-corrosion rate and electrochemical impedance spectroscopy measurement results.

Copyright

© 2018, 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  - He-Chao LI
AU  - Xiang-Rong ZHU
AU  - Wen-Xuan TANG
AU  - Dong-Yun MA
AU  - Jin-Ming WANG
AU  - Ya ZHANG
AU  - Qiu-Rong CHEN
PY  - 2018/10
DA  - 2018/10
TI  - Electrochemical Performances of Recycled AZ31 Magnesium Alloy in NaCl Solution
BT  - Proceedings of the 2018 International Conference on Energy Development and Environmental Protection (EDEP 2018)
PB  - Atlantis Press
SP  - 327
EP  - 332
SN  - 2352-5401
UR  - https://doi.org/10.2991/edep-18.2018.51
DO  - 10.2991/edep-18.2018.51
ID  - LI2018/10
ER  -