Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications

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Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications. / Shi, Ling ling; Huang, Yuanding; Yang, Lei et al.
in: Journal of the Mechanical Behavior of Biomedical Materials, Jahrgang 47, 01.07.2015, S. 38-48.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Shi LL, Huang Y, Yang L, Feyerabend F, Mendis C, Willumeit R et al. Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications. Journal of the Mechanical Behavior of Biomedical Materials. 2015 Jul 1;47:38-48. doi: 10.1016/j.jmbbm.2015.03.003

Bibtex

@article{0c21559c4b2b4a6b9e6636e97c7fc050,
title = "Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications",
abstract = "Magnesium alloys are promising candidates for biomedical applications. In this work, influences of composition and heat treatment on the microstructure, the mechanical properties and the corrosion behavior of Mg-Gd-Ca-Zr alloys as potential biomedical implant candidates were investigated. Mg5Gd phase was observed at the grain boundaries of Mg-10Gd-xCa-0.5Zr (x=0, 0.3, 1.2wt%) alloys. Increase in the Ca content led to the formation of additional Mg2Ca phase. The Ca additions increased both the compressive and the tensile yield strengths, but reduced the ductility and the corrosion resistance in cell culture medium. After solution heat treatment, the Mg5Gd particles dissolved in the Mg matrix. The compressive strength decreased, while the corrosion resistance improved in the solution treated alloys. After ageing at 200°C, metastable β' phase formed on prismatic planes and a new type of basal precipitates have been observed, which improved the compressive and tensile ultimate strength, but decreased the ductility.",
keywords = "Biomedical Applications, Corrosion behavior, Gadolinium, Magnesium, Mechanical properties, Engineering",
author = "Shi, {Ling ling} and Yuanding Huang and Lei Yang and Frank Feyerabend and Chamini Mendis and Regine Willumeit and {Ulrich Kainer}, Karl and Norbert Hort",
year = "2015",
month = jul,
day = "1",
doi = "10.1016/j.jmbbm.2015.03.003",
language = "English",
volume = "47",
pages = "38--48",
journal = "Journal of the Mechanical Behavior of Biomedical Materials",
issn = "1751-6161",
publisher = "Elsevier B.V.",

}

RIS

TY - JOUR

T1 - Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications

AU - Shi, Ling ling

AU - Huang, Yuanding

AU - Yang, Lei

AU - Feyerabend, Frank

AU - Mendis, Chamini

AU - Willumeit, Regine

AU - Ulrich Kainer, Karl

AU - Hort, Norbert

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Magnesium alloys are promising candidates for biomedical applications. In this work, influences of composition and heat treatment on the microstructure, the mechanical properties and the corrosion behavior of Mg-Gd-Ca-Zr alloys as potential biomedical implant candidates were investigated. Mg5Gd phase was observed at the grain boundaries of Mg-10Gd-xCa-0.5Zr (x=0, 0.3, 1.2wt%) alloys. Increase in the Ca content led to the formation of additional Mg2Ca phase. The Ca additions increased both the compressive and the tensile yield strengths, but reduced the ductility and the corrosion resistance in cell culture medium. After solution heat treatment, the Mg5Gd particles dissolved in the Mg matrix. The compressive strength decreased, while the corrosion resistance improved in the solution treated alloys. After ageing at 200°C, metastable β' phase formed on prismatic planes and a new type of basal precipitates have been observed, which improved the compressive and tensile ultimate strength, but decreased the ductility.

AB - Magnesium alloys are promising candidates for biomedical applications. In this work, influences of composition and heat treatment on the microstructure, the mechanical properties and the corrosion behavior of Mg-Gd-Ca-Zr alloys as potential biomedical implant candidates were investigated. Mg5Gd phase was observed at the grain boundaries of Mg-10Gd-xCa-0.5Zr (x=0, 0.3, 1.2wt%) alloys. Increase in the Ca content led to the formation of additional Mg2Ca phase. The Ca additions increased both the compressive and the tensile yield strengths, but reduced the ductility and the corrosion resistance in cell culture medium. After solution heat treatment, the Mg5Gd particles dissolved in the Mg matrix. The compressive strength decreased, while the corrosion resistance improved in the solution treated alloys. After ageing at 200°C, metastable β' phase formed on prismatic planes and a new type of basal precipitates have been observed, which improved the compressive and tensile ultimate strength, but decreased the ductility.

KW - Biomedical Applications

KW - Corrosion behavior

KW - Gadolinium

KW - Magnesium

KW - Mechanical properties

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84938585170&partnerID=8YFLogxK

U2 - 10.1016/j.jmbbm.2015.03.003

DO - 10.1016/j.jmbbm.2015.03.003

M3 - Journal articles

C2 - 25837343

AN - SCOPUS:84938585170

VL - 47

SP - 38

EP - 48

JO - Journal of the Mechanical Behavior of Biomedical Materials

JF - Journal of the Mechanical Behavior of Biomedical Materials

SN - 1751-6161

ER -

DOI