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Comparative Study of Pure Iron Manufactured by Selective Laser Melting, Laser Metal Deposition, and Casting Processes
Journal article   Open access   Peer reviewed

Comparative Study of Pure Iron Manufactured by Selective Laser Melting, Laser Metal Deposition, and Casting Processes

Danilo Carluccio, Michael Bermingham, Damon Kent, Ali Gokhan Demir, Barbara Previtali and Matthew S Dargusch
Advanced Engineering Materials, Vol.21(7), pp.1-9
2019
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Comparative Study of Pure Iron Manufactured by Selective Laser Melting, Laser Metal Deposition, and Casting Processes1.16 MBDownloadView
Accepted Version Open Access
url
https://doi.org/10.1002/adem.201900049View
Published Version

Abstract

additive manufacturing biodegradable iron corrosion mechanical properties microstructure
Laser-based additive manufacturing (AM) processes such as laser metal deposition (LMD) and selective laser melting (SLM) can produce patient-specific implants with minimal post-processing and shorter lead times compared to conventional manufacturing methods. In this study, the microstructural, mechanical, and corrosion properties of cast, LMD, and SLM manufactured pure Fe for biodegradable biomedical implants were compared. It was found that casting resulted in an average grain size double that of pure Fe manufactured via LMD and over 30 times that when compared to parts manufactured using SLM. This was attributed to the higher cooling rates of the laser-based AM technologies and led to superior mechanical properties of the samples manufactured via SLM. The corrosion rate of the LMD and SLM samples were approximately 50% higher than the cast pure Fe. For biodegradable Fe implants, a higher corrosion rate and yield stress are preferential, and combined with the ability to produce complex geometries, makes SLM a promising manufacturing technology for biodegradable implants such as bone scaffolds.

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Domestic collaboration
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Web Of Science research areas
Materials Science, Multidisciplinary
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