The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys

The growing interest in improving Mg-based alloys’ corrosion properties stimulates the development of Mg-Y-Zn alloys with long-period stacking-ordered (LPSO) structures. In this work, to describe the corrosion performance of Mg-LPSO alloys, a set of experiments, including microstructure observations...

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Main Authors: Daria Pałgan, Anna Dobkowska, Aleksandra Zielińska, Daria Drozdenko, Kristián Máthis, Wojciech Święszkowski
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/12/12/1723
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author Daria Pałgan
Anna Dobkowska
Aleksandra Zielińska
Daria Drozdenko
Kristián Máthis
Wojciech Święszkowski
author_facet Daria Pałgan
Anna Dobkowska
Aleksandra Zielińska
Daria Drozdenko
Kristián Máthis
Wojciech Święszkowski
author_sort Daria Pałgan
collection DOAJ
description The growing interest in improving Mg-based alloys’ corrosion properties stimulates the development of Mg-Y-Zn alloys with long-period stacking-ordered (LPSO) structures. In this work, to describe the corrosion performance of Mg-LPSO alloys, a set of experiments, including microstructure observations and corrosion testing in media containing various concentrations of chloride ions, were carried out. It was shown that the main corrosion mechanism occurring on the alloys was not only related to the volume of LPSO structures in the Mg matrix but was also dependent on their distribution. In the chloride-containing solutions, pitting was the predominant corrosion mechanism, and with the increasing chloride concentration, microgalvanic corrosion was accelerated.
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spelling doaj.art-2960284a5ce4477ca65a6d80948993242023-11-24T14:09:51ZengMDPI AGCrystals2073-43522022-11-011212172310.3390/cryst12121723The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn AlloysDaria Pałgan0Anna Dobkowska1Aleksandra Zielińska2Daria Drozdenko3Kristián Máthis4Wojciech Święszkowski5Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, PolandFaculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech RepublicFaculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech RepublicFaculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, PolandThe growing interest in improving Mg-based alloys’ corrosion properties stimulates the development of Mg-Y-Zn alloys with long-period stacking-ordered (LPSO) structures. In this work, to describe the corrosion performance of Mg-LPSO alloys, a set of experiments, including microstructure observations and corrosion testing in media containing various concentrations of chloride ions, were carried out. It was shown that the main corrosion mechanism occurring on the alloys was not only related to the volume of LPSO structures in the Mg matrix but was also dependent on their distribution. In the chloride-containing solutions, pitting was the predominant corrosion mechanism, and with the increasing chloride concentration, microgalvanic corrosion was accelerated.https://www.mdpi.com/2073-4352/12/12/1723Mg-LPSOcorrosionmicrostructurepittingmicrogalvanic corrosion
spellingShingle Daria Pałgan
Anna Dobkowska
Aleksandra Zielińska
Daria Drozdenko
Kristián Máthis
Wojciech Święszkowski
The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys
Crystals
Mg-LPSO
corrosion
microstructure
pitting
microgalvanic corrosion
title The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys
title_full The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys
title_fullStr The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys
title_full_unstemmed The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys
title_short The Role of LPSO Structures in Corrosion Resistance of Mg-Y-Zn Alloys
title_sort role of lpso structures in corrosion resistance of mg y zn alloys
topic Mg-LPSO
corrosion
microstructure
pitting
microgalvanic corrosion
url https://www.mdpi.com/2073-4352/12/12/1723
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