Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy

Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy

Abstract The hydrothermal treatment followed by a self-assembled monolayer (SAM) of 1-butylphosphonic acid through the tethering by aggregation and growth (T-BAG) method was employed to produce protective surface coatings on the Mg-6Al-1Zn alloy (AZ61) for reducing the degradation rate in physiologi...

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Main Authors: Chung-Wei Yang, Cheng Liu, Da-Jun Lin, Ming-Long Yeh, Tzer-Min Lee
Format: Article
Language:English
Published: Nature Publishing Group 2017-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-17199-z
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spelling doaj-c8e8e0d4df0a48bd8749e7ac8991211b2020-12-08T01:53:14ZengNature Publishing GroupScientific Reports2045-23222017-12-017111310.1038/s41598-017-17199-zHydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloyChung-Wei Yang0Cheng Liu1Da-Jun Lin2Ming-Long Yeh3Tzer-Min Lee4Department of Materials Science and Engineering, National Formosa UniversityHyperbaric Oxygen Therapy Center and Division of Plastic Surgery, Chi Mei Medical centerDepartment of Biomedical Engineering, National Cheng Kung UniversityDepartment of Biomedical Engineering, National Cheng Kung UniversityInstitute of Oral Medicine, National Cheng Kung UniversityAbstract The hydrothermal treatment followed by a self-assembled monolayer (SAM) of 1-butylphosphonic acid through the tethering by aggregation and growth (T-BAG) method was employed to produce protective surface coatings on the Mg-6Al-1Zn alloy (AZ61) for reducing the degradation rate in physiological environments. Potentiodynamic polarization measurements revealed that the organic self-assembled monolayer and Mg(OH)2 coating can further enhance the surface chemical stability and corrosion resistance of Mg alloys. SAM-treated Mg(OH)2 coatings can be served as a more passive surface layer as a result of their much higher charge transfer resistance and the presence of Warburg impedance in electrochemical impedance spectroscopy measurement.https://doi.org/10.1038/s41598-017-17199-z
collection DOAJ
language English
format Article
sources DOAJ
author Chung-Wei Yang
Cheng Liu
Da-Jun Lin
Ming-Long Yeh
Tzer-Min Lee
spellingShingle Chung-Wei Yang
Cheng Liu
Da-Jun Lin
Ming-Long Yeh
Tzer-Min Lee
Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy
Scientific Reports
author_facet Chung-Wei Yang
Cheng Liu
Da-Jun Lin
Ming-Long Yeh
Tzer-Min Lee
author_sort Chung-Wei Yang
title Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy
title_short Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy
title_full Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy
title_fullStr Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy
title_full_unstemmed Hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of AZ61 magnesium alloy
title_sort hydrothermal treatment and butylphosphonic acid derived self-assembled monolayers for improving the surface chemistry and corrosion resistance of az61 magnesium alloy
publisher Nature Publishing Group
series Scientific Reports
issn 2045-2322
publishDate 2017-12-01
description Abstract The hydrothermal treatment followed by a self-assembled monolayer (SAM) of 1-butylphosphonic acid through the tethering by aggregation and growth (T-BAG) method was employed to produce protective surface coatings on the Mg-6Al-1Zn alloy (AZ61) for reducing the degradation rate in physiological environments. Potentiodynamic polarization measurements revealed that the organic self-assembled monolayer and Mg(OH)2 coating can further enhance the surface chemical stability and corrosion resistance of Mg alloys. SAM-treated Mg(OH)2 coatings can be served as a more passive surface layer as a result of their much higher charge transfer resistance and the presence of Warburg impedance in electrochemical impedance spectroscopy measurement.
url https://doi.org/10.1038/s41598-017-17199-z
work_keys_str_mv AT chungweiyang hydrothermaltreatmentandbutylphosphonicacidderivedselfassembledmonolayersforimprovingthesurfacechemistryandcorrosionresistanceofaz61magnesiumalloy
AT chengliu hydrothermaltreatmentandbutylphosphonicacidderivedselfassembledmonolayersforimprovingthesurfacechemistryandcorrosionresistanceofaz61magnesiumalloy
AT dajunlin hydrothermaltreatmentandbutylphosphonicacidderivedselfassembledmonolayersforimprovingthesurfacechemistryandcorrosionresistanceofaz61magnesiumalloy
AT minglongyeh hydrothermaltreatmentandbutylphosphonicacidderivedselfassembledmonolayersforimprovingthesurfacechemistryandcorrosionresistanceofaz61magnesiumalloy
AT tzerminlee hydrothermaltreatmentandbutylphosphonicacidderivedselfassembledmonolayersforimprovingthesurfacechemistryandcorrosionresistanceofaz61magnesiumalloy
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