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2012 | 122 | 3 | 520-523
Article title

Properties of Biodegradable Alloys Usable for Medical Purposes

Content
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EN
Abstracts
EN
Magnesium alloys are promising materials for production of biodegradable implants that may be used for fixation of fractured bones. Magnesium itself is an essential element that plays important roles in many biological processes. However, some common alloying elements of magnesium alloys such as aluminium or copper may cause health problems to the organism. A major problem is the high corrosion rate of magnesium and its alloys in physiological environment that contains chloride anions. Currently, the research focuses on alloys doped by rare-earth elements and zinc. All these elements affect corrosion resistance and mechanical properties of magnesium alloys. This work was dealing with the study of Mg-Gd binary alloy and Mg-Gd-Y, Mg-Gd-Zn ternary alloys that were prepared from pure metals by melting in induction furnace. Various alloy compositions were tested. Corrosion behaviours in 9 M NaCl saline environments (exposure tests, potentiodynamic measurements) were studied on alloys in the cast state. Good corrosion resistance and uniform corrosion were observed in the case of binary Mg-Gd alloy. The influence of the addition of Y or Zn to the Mg-Gd system is discussed.
Keywords
EN
Publisher

Year
Volume
122
Issue
3
Pages
520-523
Physical description
Dates
published
2012-09
Contributors
author
  • Department of Metals and Corrosion Engineering, Institute of Chemical Technology Technická 5, 166 28 Prague, Czech Republic
author
  • Department of Metals and Corrosion Engineering, Institute of Chemical Technology Technická 5, 166 28 Prague, Czech Republic
author
  • Department of Metals and Corrosion Engineering, Institute of Chemical Technology Technická 5, 166 28 Prague, Czech Republic
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv122z3p24kz
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