Effect of sintering temperature on corrosion properties of sol-gel based Al2O3 coatings on pre-treated AZ91D magnesium alloy

Xiankang Zhong; Qing Li; Bo Chen; Juping Wang; Junying Hu; Wei Hu

doi:10.1016/j.corsci.2009.08.031

Effect of sintering temperature on corrosion properties of sol-gel based Al₂O₃ coatings on pre-treated AZ91D magnesium alloy

Xiankang Zhong
, Qing Li
, Bo Chen
, Juping Wang
, Junying Hu
, Wei Hu

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

42 Scopus citations

Abstract

A novel anti-corrosion sol-gel based Al₂O₃ coating was developed on the AZ91D magnesium alloy. The morphology, microstructure and composition of the coatings were investigated by scanning electron microscope coupled with energy dispersive spectroscopy, Fourier transform infrared spectrum analysis, X-ray diffraction, thermo-gravimetric and differential thermal analysis. The corrosion resistance of the coatings in 3.5 NaCl wt.% solution was studied using electrochemical measurements. The results demonstrated that a homogeneous Al₂O₃ coating could be obtained and the sol-gel coated samples sintered at 380 °C had the best corrosion resistance properties as compared to the specimens sintered at 120 and 280 °C.

Original language	English
Pages (from-to)	2950-2958
Number of pages	9
Journal	Corrosion Science
Volume	51
Issue number	12
DOIs	https://doi.org/10.1016/j.corsci.2009.08.031
State	Published - Dec 2009
Externally published	Yes

Keywords

A. Alloy
B. EIS
B. SEM
C. Oxide coatings

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10.1016/j.corsci.2009.08.031

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title = "Effect of sintering temperature on corrosion properties of sol-gel based Al2O3 coatings on pre-treated AZ91D magnesium alloy",

abstract = "A novel anti-corrosion sol-gel based Al2O3 coating was developed on the AZ91D magnesium alloy. The morphology, microstructure and composition of the coatings were investigated by scanning electron microscope coupled with energy dispersive spectroscopy, Fourier transform infrared spectrum analysis, X-ray diffraction, thermo-gravimetric and differential thermal analysis. The corrosion resistance of the coatings in 3.5 NaCl wt.\% solution was studied using electrochemical measurements. The results demonstrated that a homogeneous Al2O3 coating could be obtained and the sol-gel coated samples sintered at 380 °C had the best corrosion resistance properties as compared to the specimens sintered at 120 and 280 °C.",

keywords = "A. Alloy, B. EIS, B. SEM, C. Oxide coatings",

author = "Xiankang Zhong and Qing Li and Bo Chen and Juping Wang and Junying Hu and Wei Hu",

year = "2009",

month = dec,

doi = "10.1016/j.corsci.2009.08.031",

language = "英语",

volume = "51",

pages = "2950--2958",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

number = "12",

}

TY - JOUR

T1 - Effect of sintering temperature on corrosion properties of sol-gel based Al2O3 coatings on pre-treated AZ91D magnesium alloy

AU - Zhong, Xiankang

AU - Li, Qing

AU - Chen, Bo

AU - Wang, Juping

AU - Hu, Junying

AU - Hu, Wei

PY - 2009/12

Y1 - 2009/12

N2 - A novel anti-corrosion sol-gel based Al2O3 coating was developed on the AZ91D magnesium alloy. The morphology, microstructure and composition of the coatings were investigated by scanning electron microscope coupled with energy dispersive spectroscopy, Fourier transform infrared spectrum analysis, X-ray diffraction, thermo-gravimetric and differential thermal analysis. The corrosion resistance of the coatings in 3.5 NaCl wt.% solution was studied using electrochemical measurements. The results demonstrated that a homogeneous Al2O3 coating could be obtained and the sol-gel coated samples sintered at 380 °C had the best corrosion resistance properties as compared to the specimens sintered at 120 and 280 °C.

AB - A novel anti-corrosion sol-gel based Al2O3 coating was developed on the AZ91D magnesium alloy. The morphology, microstructure and composition of the coatings were investigated by scanning electron microscope coupled with energy dispersive spectroscopy, Fourier transform infrared spectrum analysis, X-ray diffraction, thermo-gravimetric and differential thermal analysis. The corrosion resistance of the coatings in 3.5 NaCl wt.% solution was studied using electrochemical measurements. The results demonstrated that a homogeneous Al2O3 coating could be obtained and the sol-gel coated samples sintered at 380 °C had the best corrosion resistance properties as compared to the specimens sintered at 120 and 280 °C.

KW - A. Alloy

KW - B. EIS

KW - B. SEM

KW - C. Oxide coatings

UR - https://www.scopus.com/pages/publications/71849110659

U2 - 10.1016/j.corsci.2009.08.031

DO - 10.1016/j.corsci.2009.08.031

M3 - 文章

AN - SCOPUS:71849110659

SN - 0010-938X

VL - 51

SP - 2950

EP - 2958

JO - Corrosion Science

JF - Corrosion Science

IS - 12

ER -

Effect of sintering temperature on corrosion properties of sol-gel based Al₂O₃ coatings on pre-treated AZ91D magnesium alloy

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Keywords

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