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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,

Prof. Dr. Julia Hufenbach
Leibniz Institute for Solid State and Materials Research Dresden

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