Mechanical and corrosion properties of as-cast and extruded MG10GD alloy for biomedical application
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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%.
| Original language | English |
|---|---|
| Title of host publication | Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition |
| Editors | Suveen Mathaudhu, Wim Sillekens, Neale Neelameggham |
| Number of pages | 7 |
| Publisher | The Minerals, Metals & Materials Society |
| Publication date | 2012 |
| Pages | 253-259 |
| ISBN (print) | 9781118291214, 978-3-319-48202-6 |
| ISBN (electronic) | 978-3-319-48203-3 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
| Event | 141st Annual Meeting and Exhibition of the Magnesium Technology - TMS 2012 - Orlando, FL, United States Duration: 11.03.2012 → 15.03.2012 Conference number: 141 https://www.tms.org/meetings/annual-12/proceedings.aspx |
- Biomedical application, Corrosion, Extrusion, Fatigue, Magnesium rare-earth alloys
- Engineering