Mechanical Properties and Tensile Failure Analysis of Novel Bio-absorbable Mg-Zn-Cu and Mg-Zn-Se Alloys for Endovascular Applications

Authors

Dharam Persaud, Department of Biomedical Engineering, Florida International UniversityFollow
Noah Budiansky, Exponent Failure Analysis Consultants
Anthony J. McGoron, Department of Department of Biomedical Engineering, Florida International UniversityFollow

Date of this Version

12-21-2012

Document Type

Article

Abstract

In this paper, the mechanical properties and tensile failure mechanism of two novel bio-absorbable as-cast Mg-Zn-Se and Mg-Zn-Cu alloys for endovascular medical applications are characterized. Alloys were manufactured using an ARC melting process and tested as-cast with compositions of Mg-Zn-Se and Mg-Zn-Cu, being 98/1/1 wt.% respectively. Nanoindentation testing conducted at room temperature was used to characterize the elastic modulus (E) and surface hardness (H) for both the bare alloys and the air formed oxide layer. As compared to currently available shape memory alloys and degradable as-cast alloys, these experimental alloys possess superior as-cast mechanical properties that can increase their biocompatibility, degradation kinetics, and the potential for medical device creation.

Comments

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

doi:10.3390/met3010023

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.

Recommended Citation

Persaud-Sharma, D.; Budiansky, N.; McGoron, A.J. Mechanical Properties and Tensile Failure Analysis of Novel Bio-absorbable Mg-Zn-Cu and Mg-Zn-Se Alloys for Endovascular Applications. Metals 2013, 3, 23-40.