Mechanical and corrosion properties of as-cast and extruded MG10GD alloy for biomedical application
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition. Hrsg. / Suveen Mathaudhu; Wim Sillekens; Neale Neelameggham. The Minerals, Metals & Materials Society, 2012. S. 253-259 (Magnesium Technology).
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Mechanical and corrosion properties of as-cast and extruded MG10GD alloy for biomedical application
AU - Maier, Petra
AU - Müller, Sören
AU - Dieringa, Hajo
AU - Hort, Norbert
N1 - Conference code: 141
PY - 2012
Y1 - 2012
N2 - Due to the good specific strength and the moderate corrosion rate Mg-RE alloys have found growing interest for medical applications as implant material. In this study extruded Mg10Gd has been investigated, once by potentiodynamic method and again under cyclic load. Corrosion exposure is known to reduce the fatigue strength strongly. The data are compared to Mg10Gd ascast condition and show an increase in fatigue properties and similar corrosion behavior. The form of corrosion and the influence of the temperature during voltammetric tests are discussed. A temperature increase from room to body temperature accelerates the corrosion processes. Due to stress peaks under load pitting corrosion is not preferred. The influence of the microstructure on the corrosion form is discussed. Casted Mg10Gd reveals large dendrites, which change into a globular microstructure during extrusion resulting in improved mechanical properties, mostly the elongation to fracture up to 20%.
AB - Due to the good specific strength and the moderate corrosion rate Mg-RE alloys have found growing interest for medical applications as implant material. In this study extruded Mg10Gd has been investigated, once by potentiodynamic method and again under cyclic load. Corrosion exposure is known to reduce the fatigue strength strongly. The data are compared to Mg10Gd ascast condition and show an increase in fatigue properties and similar corrosion behavior. The form of corrosion and the influence of the temperature during voltammetric tests are discussed. A temperature increase from room to body temperature accelerates the corrosion processes. Due to stress peaks under load pitting corrosion is not preferred. The influence of the microstructure on the corrosion form is discussed. Casted Mg10Gd reveals large dendrites, which change into a globular microstructure during extrusion resulting in improved mechanical properties, mostly the elongation to fracture up to 20%.
KW - Biomedical application
KW - Corrosion
KW - Extrusion
KW - Fatigue
KW - Magnesium rare-earth alloys
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84860795349&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-48203-3_47
DO - 10.1007/978-3-319-48203-3_47
M3 - Article in conference proceedings
AN - SCOPUS:84860795349
SN - 9781118291214
SN - 978-3-319-48202-6
T3 - Magnesium Technology
SP - 253
EP - 259
BT - Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition
A2 - Mathaudhu, Suveen
A2 - Sillekens, Wim
A2 - Neelameggham, Neale
PB - The Minerals, Metals & Materials Society
T2 - 141st Annual Meeting and Exhibition of the Magnesium Technology - TMS 2012
Y2 - 11 March 2012 through 15 March 2012
ER -