Optically transparent Li-Al-CO3 layered double hydroxide thin films on an AZ31 Mg alloy formed by electrochemical deposition and their corrosion resistance in a dilute chloride environment

Jia Han Syu; Jun Yen Uan; Meng Chang Lin; Zhi Yu Lin

doi:10.1016/j.corsci.2012.11.023

Optically transparent Li-Al-CO₃ layered double hydroxide thin films on an AZ31 Mg alloy formed by electrochemical deposition and their corrosion resistance in a dilute chloride environment

Jia Han Syu, Jun Yen Uan, Meng Chang Lin, Zhi Yu Lin

Research output: Contribution to journal › Article › peer-review

76 Citations (Scopus)

Abstract

An optically transparent Li-Al-CO₃ layered double hydroxide (LDH) film was formed on an AZ31 substrate by applying DC voltage between the cathode (AZ31) and the anode (stainless steel) in a Li⁺/Al³⁺ aqueous solution. The film thickness increased with electrolysis time. The LDH-coated sample exhibited low corrosion rate in NaCl solution, which was consistent with the results from long-term corrosion testing in a high-humidity environment. The LDH film exhibited good corrosion performance, which mainly resulted from its high hydrophobicity and its increased surface pH value during corrosion testing.

Original language	English
Pages (from-to)	238-248
Number of pages	11
Journal	Corrosion Science
Volume	68
DOIs	https://doi.org/10.1016/j.corsci.2012.11.023
Publication status	Published - Mar 2013
Externally published	Yes

Keywords

A. Magnesium
B. IR spectroscopy
B. Polarization
B. TEM
C. Electrodeposited films

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

Access to Document

10.1016/j.corsci.2012.11.023

Cite this

@article{e65cc5f991f647e681062e3a884673a3,

title = "Optically transparent Li-Al-CO3 layered double hydroxide thin films on an AZ31 Mg alloy formed by electrochemical deposition and their corrosion resistance in a dilute chloride environment",

abstract = "An optically transparent Li-Al-CO3 layered double hydroxide (LDH) film was formed on an AZ31 substrate by applying DC voltage between the cathode (AZ31) and the anode (stainless steel) in a Li+/Al3+ aqueous solution. The film thickness increased with electrolysis time. The LDH-coated sample exhibited low corrosion rate in NaCl solution, which was consistent with the results from long-term corrosion testing in a high-humidity environment. The LDH film exhibited good corrosion performance, which mainly resulted from its high hydrophobicity and its increased surface pH value during corrosion testing.",

keywords = "A. Magnesium, B. IR spectroscopy, B. Polarization, B. TEM, C. Electrodeposited films",

author = "Syu, {Jia Han} and Uan, {Jun Yen} and Lin, {Meng Chang} and Lin, {Zhi Yu}",

note = "Funding Information: This work was supported by the National Science Council of the Republic of China, Taiwan (Contract Nos. NSC 99-2221-E-005-024-MY2 and NSC 101-2221-E-005-027-MY3). The authors also gratefully acknowledge the financial support of the Bureau of Energy, Ministry of Economic Affairs of the Republic of China, Taiwan, under Contract No. 101-D0211.",

year = "2013",

month = mar,

doi = "10.1016/j.corsci.2012.11.023",

language = "English",

volume = "68",

pages = "238--248",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

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T1 - Optically transparent Li-Al-CO3 layered double hydroxide thin films on an AZ31 Mg alloy formed by electrochemical deposition and their corrosion resistance in a dilute chloride environment

AU - Syu, Jia Han

AU - Uan, Jun Yen

AU - Lin, Meng Chang

AU - Lin, Zhi Yu

N1 - Funding Information: This work was supported by the National Science Council of the Republic of China, Taiwan (Contract Nos. NSC 99-2221-E-005-024-MY2 and NSC 101-2221-E-005-027-MY3). The authors also gratefully acknowledge the financial support of the Bureau of Energy, Ministry of Economic Affairs of the Republic of China, Taiwan, under Contract No. 101-D0211.

PY - 2013/3

Y1 - 2013/3

N2 - An optically transparent Li-Al-CO3 layered double hydroxide (LDH) film was formed on an AZ31 substrate by applying DC voltage between the cathode (AZ31) and the anode (stainless steel) in a Li+/Al3+ aqueous solution. The film thickness increased with electrolysis time. The LDH-coated sample exhibited low corrosion rate in NaCl solution, which was consistent with the results from long-term corrosion testing in a high-humidity environment. The LDH film exhibited good corrosion performance, which mainly resulted from its high hydrophobicity and its increased surface pH value during corrosion testing.

AB - An optically transparent Li-Al-CO3 layered double hydroxide (LDH) film was formed on an AZ31 substrate by applying DC voltage between the cathode (AZ31) and the anode (stainless steel) in a Li+/Al3+ aqueous solution. The film thickness increased with electrolysis time. The LDH-coated sample exhibited low corrosion rate in NaCl solution, which was consistent with the results from long-term corrosion testing in a high-humidity environment. The LDH film exhibited good corrosion performance, which mainly resulted from its high hydrophobicity and its increased surface pH value during corrosion testing.

KW - A. Magnesium

KW - B. IR spectroscopy

KW - B. Polarization

KW - B. TEM

KW - C. Electrodeposited films

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DO - 10.1016/j.corsci.2012.11.023

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JF - Corrosion Science

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