Short- and long-term corrosion behavior of carbonate apatite-coated Mg-4mass% Y-3mass% RE alloy in cell culture medium

Sachiko Hiromoto; Sayaka Itoh; Kotaro Doi; Hideki Katayama; Takaya Akashi

doi:10.1016/j.corsci.2022.110222

Short- and long-term corrosion behavior of carbonate apatite-coated Mg-4mass% Y-3mass% RE alloy in cell culture medium

Sachiko Hiromoto, Sayaka Itoh, Kotaro Doi, Hideki Katayama, Takaya Akashi

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

5 Citations (Scopus)

Abstract

Osteoclast responsive carbonate apatite (CAp) coatings with different carbonate content rates and non-bioabsorbable hydroxyapatite (HAp) coating were formed on Mg-4mass% Y-3mass% rare earth (WE43) alloy. Electrochemical impedance spectroscopy measurement in a cell culture medium was performed for 6 h and 10 weeks, and the corrosion morphology was observed using a scanning electron microscope. Coating layer resistance of the CAp-coated specimens for 6 h was 10⁴ Ωcm² which was higher than 2 × 10³ Ωcm² of the HAp-coated specimen. Mean polarization resistance for the initial 4 weeks for the former was 4 × 10⁴–7.5 × 10⁴ Ωcm² which was higher than 2 × 10⁴ Ωcm² of the latter.

Original language	English
Article number	110222
Journal	Corrosion Science
Volume	200
DOIs	https://doi.org/10.1016/j.corsci.2022.110222
Publication status	Published - 2022 May 15
Externally published	Yes

Keywords

Biomedical magnesium alloy
Carbonate apatite
Corrosion
Electrochemical impedance spectroscopy
Hydroxyapatite
Surface modification

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2022.110222

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title = "Short- and long-term corrosion behavior of carbonate apatite-coated Mg-4mass% Y-3mass% RE alloy in cell culture medium",

abstract = "Osteoclast responsive carbonate apatite (CAp) coatings with different carbonate content rates and non-bioabsorbable hydroxyapatite (HAp) coating were formed on Mg-4mass% Y-3mass% rare earth (WE43) alloy. Electrochemical impedance spectroscopy measurement in a cell culture medium was performed for 6 h and 10 weeks, and the corrosion morphology was observed using a scanning electron microscope. Coating layer resistance of the CAp-coated specimens for 6 h was 104 Ωcm2 which was higher than 2 × 103 Ωcm2 of the HAp-coated specimen. Mean polarization resistance for the initial 4 weeks for the former was 4 × 104–7.5 × 104 Ωcm2 which was higher than 2 × 104 Ωcm2 of the latter.",

keywords = "Biomedical magnesium alloy, Carbonate apatite, Corrosion, Electrochemical impedance spectroscopy, Hydroxyapatite, Surface modification",

author = "Sachiko Hiromoto and Sayaka Itoh and Kotaro Doi and Hideki Katayama and Takaya Akashi",

note = "Funding Information: This work was partially supported by Japan Society for the Promotion of Science ( JSPS ) KAKENHI Grant Numbers 16H04511 and 19H02449 and by the Light Metal Educational Foundation . Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = may,

day = "15",

doi = "10.1016/j.corsci.2022.110222",

language = "English",

volume = "200",

journal = "Corrosion Science",

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T1 - Short- and long-term corrosion behavior of carbonate apatite-coated Mg-4mass% Y-3mass% RE alloy in cell culture medium

AU - Hiromoto, Sachiko

AU - Itoh, Sayaka

AU - Doi, Kotaro

AU - Katayama, Hideki

AU - Akashi, Takaya

N1 - Funding Information: This work was partially supported by Japan Society for the Promotion of Science ( JSPS ) KAKENHI Grant Numbers 16H04511 and 19H02449 and by the Light Metal Educational Foundation . Publisher Copyright: © 2022 Elsevier Ltd

PY - 2022/5/15

Y1 - 2022/5/15

N2 - Osteoclast responsive carbonate apatite (CAp) coatings with different carbonate content rates and non-bioabsorbable hydroxyapatite (HAp) coating were formed on Mg-4mass% Y-3mass% rare earth (WE43) alloy. Electrochemical impedance spectroscopy measurement in a cell culture medium was performed for 6 h and 10 weeks, and the corrosion morphology was observed using a scanning electron microscope. Coating layer resistance of the CAp-coated specimens for 6 h was 104 Ωcm2 which was higher than 2 × 103 Ωcm2 of the HAp-coated specimen. Mean polarization resistance for the initial 4 weeks for the former was 4 × 104–7.5 × 104 Ωcm2 which was higher than 2 × 104 Ωcm2 of the latter.

AB - Osteoclast responsive carbonate apatite (CAp) coatings with different carbonate content rates and non-bioabsorbable hydroxyapatite (HAp) coating were formed on Mg-4mass% Y-3mass% rare earth (WE43) alloy. Electrochemical impedance spectroscopy measurement in a cell culture medium was performed for 6 h and 10 weeks, and the corrosion morphology was observed using a scanning electron microscope. Coating layer resistance of the CAp-coated specimens for 6 h was 104 Ωcm2 which was higher than 2 × 103 Ωcm2 of the HAp-coated specimen. Mean polarization resistance for the initial 4 weeks for the former was 4 × 104–7.5 × 104 Ωcm2 which was higher than 2 × 104 Ωcm2 of the latter.

KW - Biomedical magnesium alloy

KW - Carbonate apatite

KW - Corrosion

KW - Electrochemical impedance spectroscopy

KW - Hydroxyapatite

KW - Surface modification

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DO - 10.1016/j.corsci.2022.110222

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AN - SCOPUS:85126055480

SN - 0010-938X

VL - 200

JO - Corrosion Science

JF - Corrosion Science

M1 - 110222

ER -

Short- and long-term corrosion behavior of carbonate apatite-coated Mg-4mass% Y-3mass% RE alloy in cell culture medium

Abstract

Keywords

ASJC Scopus subject areas

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