Using ToF-SIMS and EIS to evaluate green pretreatment reagent: Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating

Chun Chao Chang; Chiung Chi Wang; Chia Wei Wu; Shou Ching Liu; Fu Der Mai

doi:10.1016/j.apsusc.2008.05.015

Using ToF-SIMS and EIS to evaluate green pretreatment reagent: Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating

Chun Chao Chang, Chiung Chi Wang, Chia Wei Wu, Shou Ching Liu, Fu Der Mai

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

17 Citations (Scopus)

Abstract

Increasing environmental concern has led to the restrictive use of chromate conversion coatings to protect Al-alloys from corrosion. Our research is under way to find environmentally compliant substitute coating such as Si/Zr/Ce hybrid coating. The corrosion protection effect of green pretreatment reagent consisted of Si-containing base solution, Ce- and Zr-containing sealing solutions on the corrosion protection of Al-alloys was studied with a 3.5% NaCl aqueous testing solution. The correlation between the corrosion resistance measured by electrochemical impedance spectroscopy (EIS) and surface chemical composition of the hybrid coating measured by time-of-flight secondary ion mass spectroscopy (ToF-SIMS) was studied. The proposed green pretreatment reagent was found improve the corrosion protection of Al-alloys, presumably due to the formation of protective oxide film acting as an oxygen barrier.

Original language	English
Pages (from-to)	1531-1533
Number of pages	3
Journal	Applied Surface Science
Volume	255
Issue number	4
DOIs	https://doi.org/10.1016/j.apsusc.2008.05.015
Publication status	Published - Dec 15 2008

Keywords

Cerium
Corrosion protection
EIS
Green aluminum
Silicate
ToF-SIMS
Zirconium

ASJC Scopus subject areas

Surfaces, Coatings and Films

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10.1016/j.apsusc.2008.05.015

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title = "Using ToF-SIMS and EIS to evaluate green pretreatment reagent: Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating",

abstract = "Increasing environmental concern has led to the restrictive use of chromate conversion coatings to protect Al-alloys from corrosion. Our research is under way to find environmentally compliant substitute coating such as Si/Zr/Ce hybrid coating. The corrosion protection effect of green pretreatment reagent consisted of Si-containing base solution, Ce- and Zr-containing sealing solutions on the corrosion protection of Al-alloys was studied with a 3.5% NaCl aqueous testing solution. The correlation between the corrosion resistance measured by electrochemical impedance spectroscopy (EIS) and surface chemical composition of the hybrid coating measured by time-of-flight secondary ion mass spectroscopy (ToF-SIMS) was studied. The proposed green pretreatment reagent was found improve the corrosion protection of Al-alloys, presumably due to the formation of protective oxide film acting as an oxygen barrier.",

keywords = "Cerium, Corrosion protection, EIS, Green aluminum, Silicate, ToF-SIMS, Zirconium",

author = "Chang, {Chun Chao} and Wang, {Chiung Chi} and Wu, {Chia Wei} and Liu, {Shou Ching} and Mai, {Fu Der}",

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doi = "10.1016/j.apsusc.2008.05.015",

language = "English",

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T2 - Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating

AU - Chang, Chun Chao

AU - Wang, Chiung Chi

AU - Wu, Chia Wei

AU - Liu, Shou Ching

AU - Mai, Fu Der

PY - 2008/12/15

Y1 - 2008/12/15

N2 - Increasing environmental concern has led to the restrictive use of chromate conversion coatings to protect Al-alloys from corrosion. Our research is under way to find environmentally compliant substitute coating such as Si/Zr/Ce hybrid coating. The corrosion protection effect of green pretreatment reagent consisted of Si-containing base solution, Ce- and Zr-containing sealing solutions on the corrosion protection of Al-alloys was studied with a 3.5% NaCl aqueous testing solution. The correlation between the corrosion resistance measured by electrochemical impedance spectroscopy (EIS) and surface chemical composition of the hybrid coating measured by time-of-flight secondary ion mass spectroscopy (ToF-SIMS) was studied. The proposed green pretreatment reagent was found improve the corrosion protection of Al-alloys, presumably due to the formation of protective oxide film acting as an oxygen barrier.

AB - Increasing environmental concern has led to the restrictive use of chromate conversion coatings to protect Al-alloys from corrosion. Our research is under way to find environmentally compliant substitute coating such as Si/Zr/Ce hybrid coating. The corrosion protection effect of green pretreatment reagent consisted of Si-containing base solution, Ce- and Zr-containing sealing solutions on the corrosion protection of Al-alloys was studied with a 3.5% NaCl aqueous testing solution. The correlation between the corrosion resistance measured by electrochemical impedance spectroscopy (EIS) and surface chemical composition of the hybrid coating measured by time-of-flight secondary ion mass spectroscopy (ToF-SIMS) was studied. The proposed green pretreatment reagent was found improve the corrosion protection of Al-alloys, presumably due to the formation of protective oxide film acting as an oxygen barrier.

KW - Cerium

KW - Corrosion protection

KW - EIS

KW - Green aluminum

KW - Silicate

KW - ToF-SIMS

KW - Zirconium

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Using ToF-SIMS and EIS to evaluate green pretreatment reagent: Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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