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Journal of Materials Science
Erschienen in: Journal of Materials Science 3/2016

01.02.2016 | Invited Viewpoint

Viewpoint: metallurgical aspects of powder bed metal additive manufacturing

verfasst von: Rainer J. Hebert

Erschienen in: Journal of Materials Science | Ausgabe 3/2016

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Abstract

Metal additive manufacturing has emerged as a new manufacturing option for aerospace and biomedical applications. The many challenges that surround this new manufacturing technology fall into several different categories. The paper addresses one of these categories, the physical mechanisms that control the additive manufacturing process. Physical mechanisms control the effects of processing parameters on microstructures and properties of additively manufactured parts. Some mechanisms might not have been recognized, yet, and for those that are currently known, detailed quantitative predictions have to be established. The physical mechanisms of metal additive manufacturing are firmly grounded in metallurgy, branching into laser physics and the physics of granular materials. Powder bed additive manufacturing is described from the powder storage to post-processing and elements of metallurgy are highlighted that are relevant for the different aspects of the additive manufacturing process. These elements include the surface reactions on powder particles, the heating and melting behavior of the powder bed, solidification, and post-processing. This overview of the different metallurgical aspects to additive manufacturing is intended to help guide research efforts and it will also serve as a snapshot of the current understanding of powder bed additive manufacturing.
Vorheriger Artikel Editorial
Nächster Artikel Synergies between computational modeling and experimental characterization of materials across length scales

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Metadaten
Titel
Viewpoint: metallurgical aspects of powder bed metal additive manufacturing
verfasst von
Rainer J. Hebert
Publikationsdatum
01.02.2016
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 3/2016
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9479-x

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