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Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings

This research aims to study the processing and the properties of hot-dipped Zn-Mg coatings with varying amount of Mg compositions. Zn-Mg coatings with 1 wt.%, 2 wt.%, 3 wt.% and 4 wt.% Mg were produced at 685 degrees C using molten salt furnace with Argon protective gas atmosphere to minimise the ox...

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Main Authors: Yao, C., Wang, Z., Tay, S.L., Gao, W.
Format: Article
Published: Elsevier 2014
Subjects:
Q Science (General)
Online Access:http://eprints.um.edu.my/15392/
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spelling my.um.eprints.153922019-03-19T07:26:49Z http://eprints.um.edu.my/15392/ Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings Yao, C. Wang, Z. Tay, S.L. Gao, W. Q Science (General) This research aims to study the processing and the properties of hot-dipped Zn-Mg coatings with varying amount of Mg compositions. Zn-Mg coatings with 1 wt.%, 2 wt.%, 3 wt.% and 4 wt.% Mg were produced at 685 degrees C using molten salt furnace with Argon protective gas atmosphere to minimise the oxidation of Mg. Characterisation techniques including X-ray diffraction (XRD) and environmental scanning electron microscope (ESEM) were performed to study the microstructures and phases of the coatings. The results showed that laminar eutectic containing MgZn2 and Zn formed at the grain boundary areas of Zn crystals in Zn-Mg coatings. Accelerated corrosion test methods like electrochemical and salt water immersion tests verified the improved anticorrosion properties of Zn-3 wt.% Mg coating compared with pure Zn coating. A significant enhancement in the microhardness was also observed with the addition of Mg into the coating composition. (C) 2014 Elsevier B.V. All rights reserved. Elsevier 2014 Article PeerReviewed Yao, C. and Wang, Z. and Tay, S.L. and Gao, W. (2014) Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings. Surface and Coatings Technology, 260. pp. 39-45. ISSN 0257-8972
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
spellingShingle Q Science (General)
Yao, C.
Wang, Z.
Tay, S.L.
Gao, W.
Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings
description This research aims to study the processing and the properties of hot-dipped Zn-Mg coatings with varying amount of Mg compositions. Zn-Mg coatings with 1 wt.%, 2 wt.%, 3 wt.% and 4 wt.% Mg were produced at 685 degrees C using molten salt furnace with Argon protective gas atmosphere to minimise the oxidation of Mg. Characterisation techniques including X-ray diffraction (XRD) and environmental scanning electron microscope (ESEM) were performed to study the microstructures and phases of the coatings. The results showed that laminar eutectic containing MgZn2 and Zn formed at the grain boundary areas of Zn crystals in Zn-Mg coatings. Accelerated corrosion test methods like electrochemical and salt water immersion tests verified the improved anticorrosion properties of Zn-3 wt.% Mg coating compared with pure Zn coating. A significant enhancement in the microhardness was also observed with the addition of Mg into the coating composition. (C) 2014 Elsevier B.V. All rights reserved.
format Article
author Yao, C.
Wang, Z.
Tay, S.L.
Gao, W.
author_facet Yao, C.
Wang, Z.
Tay, S.L.
Gao, W.
author_sort Yao, C.
title Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings
title_short Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings
title_full Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings
title_fullStr Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings
title_full_unstemmed Effects of Mg on morphologies and properties of hot dipped Zn-Mg coatings
title_sort effects of mg on morphologies and properties of hot dipped zn-mg coatings
publisher Elsevier
publishDate 2014
url http://eprints.um.edu.my/15392/
_version_ 1643690044578332672
score 13.211869

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