Microstructure, mechanical and corrosion properties of Mg-Dy-Gd-Zr alloys for medical applications

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Microstructure, mechanical and corrosion properties of Mg-Dy-Gd-Zr alloys for medical applications. / Yang, L.; Huang, Y.; Feyerabend, F. et al.
In: Acta Biomaterialia, Vol. 9, No. 10, 11.2013, p. 8499-8508.

Research output: Journal contributionsJournal articlesResearchpeer-review

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Yang L, Huang Y, Feyerabend F, Willumeit R, Mendis C, Kainer KU et al. Microstructure, mechanical and corrosion properties of Mg-Dy-Gd-Zr alloys for medical applications. Acta Biomaterialia. 2013 Nov;9(10):8499-8508. doi: 10.1016/j.actbio.2013.03.017

Bibtex

@article{a1e1e1abfc244536962840b72aecdfc4,
title = "Microstructure, mechanical and corrosion properties of Mg-Dy-Gd-Zr alloys for medical applications",
abstract = "In previous investigations, a Mg-10Dy (wt.%) alloy with a good combination of corrosion resistance and cytocompatibility showed great potential for use as a biodegradable implant material. However, the mechanical properties of Mg-10Dy alloy are not satisfactory. In order to allow the tailoring of mechanical properties required for various medical applications, four Mg-10(Dy + Gd)-0.2Zr (wt.%) alloys were investigated with respect to microstructure, mechanical and corrosion properties. With the increase in Gd content, the number of second-phase particles increased in the as-cast alloys, and the age-hardening response increased at 200 C. The yield strength increased, while the ductility reduced, especially for peak-aged alloys with the addition of Gd. Additionally, with increasing Gd content, the corrosion rate increased in the as-cast condition owing to the galvanic effect, but all the alloys had a similar corrosion rate (∼0.5 mm year-1) in solution-treated and aged condition.",
keywords = "Corrosion properties, Mechanical properties, Mg-Dy-Gd-Zr alloys, Microstructure, Engineering",
author = "L. Yang and Y. Huang and F. Feyerabend and R. Willumeit and C. Mendis and Kainer, {K. U.} and N. Hort",
year = "2013",
month = nov,
doi = "10.1016/j.actbio.2013.03.017",
language = "English",
volume = "9",
pages = "8499--8508",
journal = "Acta Biomaterialia",
issn = "1742-7061",
publisher = "Acta Materialia Inc",
number = "10",

}

RIS

TY - JOUR

T1 - Microstructure, mechanical and corrosion properties of Mg-Dy-Gd-Zr alloys for medical applications

AU - Yang, L.

AU - Huang, Y.

AU - Feyerabend, F.

AU - Willumeit, R.

AU - Mendis, C.

AU - Kainer, K. U.

AU - Hort, N.

PY - 2013/11

Y1 - 2013/11

N2 - In previous investigations, a Mg-10Dy (wt.%) alloy with a good combination of corrosion resistance and cytocompatibility showed great potential for use as a biodegradable implant material. However, the mechanical properties of Mg-10Dy alloy are not satisfactory. In order to allow the tailoring of mechanical properties required for various medical applications, four Mg-10(Dy + Gd)-0.2Zr (wt.%) alloys were investigated with respect to microstructure, mechanical and corrosion properties. With the increase in Gd content, the number of second-phase particles increased in the as-cast alloys, and the age-hardening response increased at 200 C. The yield strength increased, while the ductility reduced, especially for peak-aged alloys with the addition of Gd. Additionally, with increasing Gd content, the corrosion rate increased in the as-cast condition owing to the galvanic effect, but all the alloys had a similar corrosion rate (∼0.5 mm year-1) in solution-treated and aged condition.

AB - In previous investigations, a Mg-10Dy (wt.%) alloy with a good combination of corrosion resistance and cytocompatibility showed great potential for use as a biodegradable implant material. However, the mechanical properties of Mg-10Dy alloy are not satisfactory. In order to allow the tailoring of mechanical properties required for various medical applications, four Mg-10(Dy + Gd)-0.2Zr (wt.%) alloys were investigated with respect to microstructure, mechanical and corrosion properties. With the increase in Gd content, the number of second-phase particles increased in the as-cast alloys, and the age-hardening response increased at 200 C. The yield strength increased, while the ductility reduced, especially for peak-aged alloys with the addition of Gd. Additionally, with increasing Gd content, the corrosion rate increased in the as-cast condition owing to the galvanic effect, but all the alloys had a similar corrosion rate (∼0.5 mm year-1) in solution-treated and aged condition.

KW - Corrosion properties

KW - Mechanical properties

KW - Mg-Dy-Gd-Zr alloys

KW - Microstructure

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84884672923&partnerID=8YFLogxK

U2 - 10.1016/j.actbio.2013.03.017

DO - 10.1016/j.actbio.2013.03.017

M3 - Journal articles

C2 - 23523938

AN - SCOPUS:84884672923

VL - 9

SP - 8499

EP - 8508

JO - Acta Biomaterialia

JF - Acta Biomaterialia

SN - 1742-7061

IS - 10

ER -

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