Additive manufacturing of magnesium alloys

Rakeshkumar Karunakaran, Sam Ortgies, Ali Tamayol, Florin Bobaru, Michael P. Sealy

Research output: Contribution to journalReview article

2 Scopus citations

Abstract

Magnesium alloys are a promising new class of degradable biomaterials that have a similar stiffness to bone, which minimizes the harmful effects of stress shielding. Use of biodegradable magnesium implants eliminates the need for a second surgery for repair or removal. There is a growing interest to capitalize on additive manufacturing's unique design capabilities to advance the frontiers of medicine. However, magnesium alloys are difficult to 3D print due to the high chemical reactivity that poses a combustion risk. Furthermore, the low vaporization temperature of magnesium and common biocompatible alloying elements further increases the difficulty to print fully dense structures that balance strength and corrosion requirements. The purpose of this study is to survey current techniques to 3D print magnesium constructs and provide guidance on best additive practices for these alloys.

Original languageEnglish (US)
Pages (from-to)44-54
Number of pages11
JournalBioactive Materials
Volume5
Issue number1
DOIs
StatePublished - Mar 2020

Keywords

  • Additive manufacturing
  • Implants
  • Magnesium

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Biomedical Engineering

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