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Mechanical and corrosion properties of as-cast and extruded MG10GD alloy for biomedical application

Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet

Authors

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%.

OriginalspracheEnglisch
TitelMagnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition
HerausgeberSuveen Mathaudhu, Wim Sillekens, Neale Neelameggham
Anzahl der Seiten7
VerlagThe Minerals, Metals & Materials Society
Erscheinungsdatum2012
Seiten253-259
ISBN (Print)9781118291214, 978-3-319-48202-6
ISBN (elektronisch)978-3-319-48203-3
DOIs
PublikationsstatusErschienen - 2012
Extern publiziertJa
Veranstaltung141st Annual Meeting and Exhibition of the Magnesium Technology - TMS 2012 - Orlando, FL, USA / Vereinigte Staaten
Dauer: 11.03.2012 → 15.03.2012
Konferenznummer: 141
https://www.tms.org/meetings/annual-12/proceedings.aspx

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