Microstructural, mechanical and corrosion characterization of an as-cast Mg–3Zn–0.4Ca alloy for biomedical applications

N. Pulido-González; B. Torres; P. Rodrigo; N. Hort; J. Rams

doi:10.1016/j.jma.2020.02.007

Microstructural, mechanical and corrosion characterization of an as-cast Mg–3Zn–0.4Ca alloy for biomedical applications

N. Pulido-González
, B. Torres^*
, P. Rodrigo
, N. Hort
, J. Rams

^*Corresponding author for this work

Research output: Journal contributions › Journal articles › Research › peer-review

58 Citations (Scopus)

Abstract

The as-cast Mg–3Zn–0.4Ca alloy shows a great potential to be used in biomedical applications due to its composition, mechanical properties and biodegradability. Zn and Ca appear naturally in the organism accomplishing vital functions. The alloy consists of an α-Mg matrix and a eutectic composed of α-Mg + Ca₂Mg₆Zn₃. The eutectic product enhances the mechanical properties of the studied alloy, causing strengthening and providing superior hardness values. In this alloy, cracks initiate at the intermetallic compounds and progress through the matrix because of the open network formed by the eutectics. Attending to the corrosion results, the eutectic product presents a noble potential compared to the α-Mg phase. For this reason, the corrosion progresses preferentially through the matrix, avoiding the (α-Mg + Ca₂Mg₆Zn₃) eutectic product, when the alloy is in direct contact to Hank's solution.

Original language	English
Journal	Journal of Magnesium and Alloys
Volume	8
Issue number	2
Pages (from-to)	510-522
Number of pages	13
ISSN	2213-9567
DOIs	https://doi.org/10.1016/j.jma.2020.02.007
Publication status	Published - 01.06.2020
Externally published	Yes

Bibliographical note

The authors would like to acknowledge the financial support from the Agencia Estatal de Investigación (Project RTI2018-096391-B-C31 ), Comunidad de Madrid (Project ADITIMAT-CM S2018/NMT-4411) and the FPU grant (15/03606) from the Ministerio de Educación, Cultura y Deporte, Spain.

Publisher Copyright:
© 2020

Research areas and keywords

Biodegradable implants
Biomaterials
Corrosion behaviour
Mg–Zn–Ca alloys
Nanoindentation
Three-point bending test
Engineering

ASJC Scopus Subject Areas

Metals and Alloys
Mechanics of Materials

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10.1016/j.jma.2020.02.007Licence: CC BY-NC-ND

Cite this

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title = "Microstructural, mechanical and corrosion characterization of an as-cast Mg–3Zn–0.4Ca alloy for biomedical applications",

abstract = "The as-cast Mg–3Zn–0.4Ca alloy shows a great potential to be used in biomedical applications due to its composition, mechanical properties and biodegradability. Zn and Ca appear naturally in the organism accomplishing vital functions. The alloy consists of an α-Mg matrix and a eutectic composed of α-Mg + Ca2Mg6Zn3. The eutectic product enhances the mechanical properties of the studied alloy, causing strengthening and providing superior hardness values. In this alloy, cracks initiate at the intermetallic compounds and progress through the matrix because of the open network formed by the eutectics. Attending to the corrosion results, the eutectic product presents a noble potential compared to the α-Mg phase. For this reason, the corrosion progresses preferentially through the matrix, avoiding the (α-Mg + Ca2Mg6Zn3) eutectic product, when the alloy is in direct contact to Hank's solution.",

keywords = "Biodegradable implants, Biomaterials, Corrosion behaviour, Mg–Zn–Ca alloys, Nanoindentation, Three-point bending test, Engineering",

author = "N. Pulido-Gonz{\'a}lez and B. Torres and P. Rodrigo and N. Hort and J. Rams",

note = "The authors would like to acknowledge the financial support from the Agencia Estatal de Investigaci{\'o}n (Project RTI2018-096391-B-C31 ), Comunidad de Madrid (Project ADITIMAT-CM S2018/NMT-4411) and the FPU grant (15/03606) from the Ministerio de Educaci{\'o}n, Cultura y Deporte, Spain. Publisher Copyright: {\textcopyright} 2020",

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doi = "10.1016/j.jma.2020.02.007",

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AU - Pulido-González, N.

AU - Torres, B.

AU - Rodrigo, P.

AU - Hort, N.

AU - Rams, J.

N1 - The authors would like to acknowledge the financial support from the Agencia Estatal de Investigación (Project RTI2018-096391-B-C31 ), Comunidad de Madrid (Project ADITIMAT-CM S2018/NMT-4411) and the FPU grant (15/03606) from the Ministerio de Educación, Cultura y Deporte, Spain. Publisher Copyright: © 2020

PY - 2020/6/1

Y1 - 2020/6/1

N2 - The as-cast Mg–3Zn–0.4Ca alloy shows a great potential to be used in biomedical applications due to its composition, mechanical properties and biodegradability. Zn and Ca appear naturally in the organism accomplishing vital functions. The alloy consists of an α-Mg matrix and a eutectic composed of α-Mg + Ca2Mg6Zn3. The eutectic product enhances the mechanical properties of the studied alloy, causing strengthening and providing superior hardness values. In this alloy, cracks initiate at the intermetallic compounds and progress through the matrix because of the open network formed by the eutectics. Attending to the corrosion results, the eutectic product presents a noble potential compared to the α-Mg phase. For this reason, the corrosion progresses preferentially through the matrix, avoiding the (α-Mg + Ca2Mg6Zn3) eutectic product, when the alloy is in direct contact to Hank's solution.

AB - The as-cast Mg–3Zn–0.4Ca alloy shows a great potential to be used in biomedical applications due to its composition, mechanical properties and biodegradability. Zn and Ca appear naturally in the organism accomplishing vital functions. The alloy consists of an α-Mg matrix and a eutectic composed of α-Mg + Ca2Mg6Zn3. The eutectic product enhances the mechanical properties of the studied alloy, causing strengthening and providing superior hardness values. In this alloy, cracks initiate at the intermetallic compounds and progress through the matrix because of the open network formed by the eutectics. Attending to the corrosion results, the eutectic product presents a noble potential compared to the α-Mg phase. For this reason, the corrosion progresses preferentially through the matrix, avoiding the (α-Mg + Ca2Mg6Zn3) eutectic product, when the alloy is in direct contact to Hank's solution.

KW - Biodegradable implants

KW - Biomaterials

KW - Corrosion behaviour

KW - Mg–Zn–Ca alloys

KW - Nanoindentation

KW - Three-point bending test

KW - Engineering

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DO - 10.1016/j.jma.2020.02.007

M3 - Journal articles

AN - SCOPUS:85084383978

SN - 2213-9567

VL - 8

SP - 510

EP - 522

JO - Journal of Magnesium and Alloys

JF - Journal of Magnesium and Alloys

IS - 2

ER -

Microstructural, mechanical and corrosion characterization of an as-cast Mg–3Zn–0.4Ca alloy for biomedical applications

Abstract

Bibliographical note

Research areas and keywords

ASJC Scopus Subject Areas

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