Comparison of corrosion resistance and biocompatibility of magnesium phosphate (MgP), zinc phosphate (ZnP) and calcium phosphate (CaP) conversion coatings on Mg alloy

Wei Zai; Xiaoru Zhang; Yingchao Su; Hau Chung Man; Guangyu Li; Jianshe Lian

doi:10.1016/j.surfcoat.2020.125919

Comparison of corrosion resistance and biocompatibility of magnesium phosphate (MgP), zinc phosphate (ZnP) and calcium phosphate (CaP) conversion coatings on Mg alloy

Wei Zai, Xiaoru Zhang, Yingchao Su, Hau Chung Man, Guangyu Li, Jianshe Lian

Research output: Journal article publication › Journal article › Academic research › peer-review

72 Citations (Scopus)

Abstract

Seven different conversion coatings (which can be classified into three types: MgP, ZnP and CaP) were prepared on Mg alloy substrates to compare the corrosion resistance and biocompatibility of these coatings. Biocompatibility and cytotoxicity of different coated samples and bare Mg alloy were studied using the CCK-8 test. The corrosion resistance of different conversion coatings was comparatively studied by electrochemical tests (OCP, EIS and PDP) and long-term immersion test in Hanks' solution. Based on the experimental results, the corrosion mechanism of different types of conversion coatings and Mg alloy substrate was proposed and investigated.

Original language	English
Article number	125919
Number of pages	17
Journal	Surface and Coatings Technology
Volume	397
DOIs	https://doi.org/10.1016/j.surfcoat.2020.125919
Publication status	Published - 15 Sept 2020

Keywords

Phosphate conversion coating
Magnesium alloy
Corrosion resistance
Electrochemical measurements
hydrogen evolution
Biocompatibility

More information

10.1016/j.surfcoat.2020.125919

http://hdl.handle.net/10397/104150

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title = "Comparison of corrosion resistance and biocompatibility of magnesium phosphate (MgP), zinc phosphate (ZnP) and calcium phosphate (CaP) conversion coatings on Mg alloy",

abstract = "Seven different conversion coatings (which can be classified into three types: MgP, ZnP and CaP) were prepared on Mg alloy substrates to compare the corrosion resistance and biocompatibility of these coatings. Biocompatibility and cytotoxicity of different coated samples and bare Mg alloy were studied using the CCK-8 test. The corrosion resistance of different conversion coatings was comparatively studied by electrochemical tests (OCP, EIS and PDP) and long-term immersion test in Hanks' solution. Based on the experimental results, the corrosion mechanism of different types of conversion coatings and Mg alloy substrate was proposed and investigated.",

keywords = "Phosphate conversion coating, Magnesium alloy, Corrosion resistance, Electrochemical measurements, hydrogen evolution, Biocompatibility",

author = "Wei Zai and Xiaoru Zhang and Yingchao Su and Man, {Hau Chung} and Guangyu Li and Jianshe Lian",

year = "2020",

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day = "15",

doi = "10.1016/j.surfcoat.2020.125919",

language = "English",

volume = "397",

journal = "Surface and Coatings Technology",

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publisher = "Elsevier B.V.",

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Comparison of corrosion resistance and biocompatibility of magnesium phosphate (MgP), zinc phosphate (ZnP) and calcium phosphate (CaP) conversion coatings on Mg alloy. / Zai, Wei; Zhang, Xiaoru; Su, Yingchao et al.
In: Surface and Coatings Technology, Vol. 397, 125919, 15.09.2020.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Comparison of corrosion resistance and biocompatibility of magnesium phosphate (MgP), zinc phosphate (ZnP) and calcium phosphate (CaP) conversion coatings on Mg alloy

AU - Zai, Wei

AU - Zhang, Xiaoru

AU - Su, Yingchao

AU - Man, Hau Chung

AU - Li, Guangyu

AU - Lian, Jianshe

PY - 2020/9/15

Y1 - 2020/9/15

N2 - Seven different conversion coatings (which can be classified into three types: MgP, ZnP and CaP) were prepared on Mg alloy substrates to compare the corrosion resistance and biocompatibility of these coatings. Biocompatibility and cytotoxicity of different coated samples and bare Mg alloy were studied using the CCK-8 test. The corrosion resistance of different conversion coatings was comparatively studied by electrochemical tests (OCP, EIS and PDP) and long-term immersion test in Hanks' solution. Based on the experimental results, the corrosion mechanism of different types of conversion coatings and Mg alloy substrate was proposed and investigated.

AB - Seven different conversion coatings (which can be classified into three types: MgP, ZnP and CaP) were prepared on Mg alloy substrates to compare the corrosion resistance and biocompatibility of these coatings. Biocompatibility and cytotoxicity of different coated samples and bare Mg alloy were studied using the CCK-8 test. The corrosion resistance of different conversion coatings was comparatively studied by electrochemical tests (OCP, EIS and PDP) and long-term immersion test in Hanks' solution. Based on the experimental results, the corrosion mechanism of different types of conversion coatings and Mg alloy substrate was proposed and investigated.

KW - Phosphate conversion coating

KW - Magnesium alloy

KW - Corrosion resistance

KW - Electrochemical measurements

KW - hydrogen evolution

KW - Biocompatibility

U2 - 10.1016/j.surfcoat.2020.125919

DO - 10.1016/j.surfcoat.2020.125919

M3 - Journal article

SN - 0257-8972

VL - 397

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

M1 - 125919

ER -

Comparison of corrosion resistance and biocompatibility of magnesium phosphate (MgP), zinc phosphate (ZnP) and calcium phosphate (CaP) conversion coatings on Mg alloy

Abstract

Keywords

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