Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)

Effects of Y on microstructure and corrosion behavior of Mg-8Zn-4Al alloy

Authors
Zhiling Bai, Bingke Qin
Corresponding Author
Zhiling Bai
Available Online February 2018.
DOI
https://doi.org/10.2991/ifeesm-17.2018.140How to use a DOI?
Keywords
Mg-8Zn-4Al alloy; Y; microstructure; corrosion resistance
Abstract

Effects of Y on microstructure of Mg-8Zn-4Al alloy was investigated by optical microscope (OM),X-ray diffractometry (XRD).The corrosion resistance behavior of Mg-8Zn-4Al- xY alloy immersed in 3.5% NaCl solution was tested by static weight loss and potentiodynamic polarization. The results showed that Mg-8Zn-4Al alloy with Y addition can refine grain size of the matrix and alter the distribution of the -Mg32(Al,Zn)49 phase from continuous network morphology transition to evenly distributed .The microstructure of Mg-8Zn-4Al-0.5Y alloy was finely refined, but no new phase was found.The new phase of Mg-8Zn-4Al-1.0Y alloy was Mg24Al5Zn2Y19. The corrosion potential value of Mg-8Zn-4Al alloy was increased with Y addition,while the corrosion current density was reduced. The corrosion resistance of Mg-8Zn-4Al alloy can be enhanced obviously with Y addition. The corrosion rate of Mg-8Zn-4Al-0.5Y alloy was the lowest compared with the other alloy in this test. Mg-8Zn-4Al-0.5Y alloy has the best corrosion resistance among of the four kinds alloy.

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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Volume Title
Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
Series
Advances in Engineering Research
Publication Date
February 2018
ISBN
10.2991/ifeesm-17.2018.140
ISSN
2352-5401
DOI
https://doi.org/10.2991/ifeesm-17.2018.140How to use a DOI?
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/).

Cite this article

TY  - CONF
AU  - Zhiling Bai
AU  - Bingke Qin
PY  - 2018/02
DA  - 2018/02
TI  - Effects of Y on microstructure and corrosion behavior of Mg-8Zn-4Al alloy
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 748
EP  - 751
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.140
DO  - https://doi.org/10.2991/ifeesm-17.2018.140
ID  - Bai2018/02
ER  -