Corrosion mechanism applicable to biodegradable magnesium implants

Atrens, Andrej, Liu, Ming and Zainal Abidin, Nor Ishida (2011). Corrosion mechanism applicable to biodegradable magnesium implants. In: Frank Witte and Diego Mantovani, 2nd Symposium on Biodegradable Metals, Maratea, Italy, (1609-1636). 31 August –3 September 2010. doi:10.1016/j.mseb.2010.12.017


Author Atrens, Andrej
Liu, Ming
Zainal Abidin, Nor Ishida
Title of paper Corrosion mechanism applicable to biodegradable magnesium implants
Conference name 2nd Symposium on Biodegradable Metals
Conference location Maratea, Italy
Conference dates 31 August –3 September 2010
Journal name Materials Science and Engineering B: Advanced Functional Solid-state Materials   Check publisher's open access policy
Place of Publication Lausanne, Switzerland
Publisher Elsevier
Publication Year 2011
Sub-type Fully published paper
DOI 10.1016/j.mseb.2010.12.017
Open Access Status Not yet assessed
ISSN 0921-5107
1873-4944
Editor Frank Witte
Diego Mantovani
Volume 176
Issue 20
Start page 1609
End page 1636
Total pages 28
Language eng
Abstract/Summary Much of our understanding of the Mg corrosion mechanism is based on research using aggressive chloride based solutions like 3% NaCl, which are appropriate for understand the corrosion for applications such as auto construction. The chloride ions tend to cause break down of the partly protective surface film on the Mg alloy surface. The corrosion rate increases with exposure time until steady state is reached, which may take several weeks. An overview is provided of the aspects which determine the corrosion of Mg alloys: (i) measurement details; (ii) impurity elements Fe, Ni, Cu and Co; (iii) second phases; (iv) surface films and surface condition and (v) stress corrosion cracking (SCC). This understanding is used to help understand Mg corrosion for Mg as a biodegradable implant for medical applications. Solutions that elucidate these applications tend to form surface films and the corrosion rate tends to decrease with immersion time.
Subjects 2500 Materials Science
3104 Condensed Matter Physics
2211 Mechanics of Materials
2210 Mechanical Engineering
Keyword Magnesium
Corrosion
Stress corrosion cracking
Biodegradable implants
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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