The Promise of Mg-Li Based Alloys for Biomedical Implant Materials
Lithium is an attractive element for Mg alloys for several reasons. It can improve room temperature ductility by transforming the single-phase hcp microstructure of Mg to a duplex phase followed by a single-phase bcc structure. With a solubility of ~5 wt.% Li, α-Mg is less prone to localized corrosi...
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Veröffentlicht in: | Materials science forum 2023-04, Vol.1085, p.139-148 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Lithium is an attractive element for Mg alloys for several reasons. It can improve room temperature ductility by transforming the single-phase hcp microstructure of Mg to a duplex phase followed by a single-phase bcc structure. With a solubility of ~5 wt.% Li, α-Mg is less prone to localized corrosion due to the absence of intermetallics. Furthermore, the strength of Mg-Li based alloys can be enhanced by alloying and thermomechanical processing. However, grain refinement has proven to be an effective mechanism in offsetting a compromise in ductility. It is for these reasons that Mg-Li based alloys have been the focus of great interest as a biomaterial where high strength, appreciable ductility and uniform corrosion behavior are required. |
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ISSN: | 0255-5476 1662-9752 1662-9752 |
DOI: | 10.4028/p-55j9e9 |