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New materials for bioabsorbable stents

Selective Laser Melting helps to optimize Iron Manganese alloys for use as bioabsorbable vascular implants

Promising approach for biodegradable stents made of a newly developed Iron Manganese alloy. Synthesis by selective laser melting leads to a modified microstructure, which has a positive effect on the mechanical and corrosion properties.

Bioabsorbable metals are new materials for medical applications where only temporary functionality is required. They then decompose into non-toxic components. The selective laser melting (SLM) process offers great potential for producing biodegradable metallic materials for customized implants. By appropriate process control, the microstructure - and thus the desired mechanical and corrosion properties - can be manipulated. In the current publication in the journal Advanced Engineering Materials, scientists from IFW Dresden report that a novel iron manganese alloy has been optimized in this way for the use as bioabsorbable vascular implants and has undergone first functionality tests.

Original publication: J. Hufenbach, J. Sander, F. Kochta, S. Pilz, A. Voss, U. Kühn, A. Gebert: Effect of Selective Laser Melting on Microstructure, Mechanical, and Corrosion Properties of Biodegradable FeMnCS for Implant Applications, Adv. Eng. Mater. 2020, 22, 2000182,
https://doi.org/10.1002/adem.202070042

Contact:
Prof. Dr. Julia Hufenbach
Leibniz Institute for Solid State and Materials Research Dresden
j.hufenbach(at)ifw-dresden.de

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