Fe and Fe-based alloys are great candidates for biodegradable metal implants. In order to achieve high density pure Fe and Fe-35Mn structures, the correct implementation of process strategies and parameters needs to be studied to achieve high density parts. In this study, pure Fe and Fe-35Mn were successfully processed via SLM with a relative density over 99.5%. The lower melting temperature of Fe-35Mn introduced porosity, resulting in a lower processability compared to the pure Fe. In terms of process optimization, most of the typical quality indicators (roughness, density and apparent density) could be correlated to the energy density.

Selective laser melting Fe and Fe-35Mn for biodegradable implants

Demir, Ali Gökhan;Caprio, Leonardo;Previtali, Barbara
2020

Abstract

Fe and Fe-based alloys are great candidates for biodegradable metal implants. In order to achieve high density pure Fe and Fe-35Mn structures, the correct implementation of process strategies and parameters needs to be studied to achieve high density parts. In this study, pure Fe and Fe-35Mn were successfully processed via SLM with a relative density over 99.5%. The lower melting temperature of Fe-35Mn introduced porosity, resulting in a lower processability compared to the pure Fe. In terms of process optimization, most of the typical quality indicators (roughness, density and apparent density) could be correlated to the energy density.
Selective laser melting, biodegradable iron, microstructure, processing
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1125647
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