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Powder characterization – methods, standards and state of the art

Groarke, Robert, Vijayaraghavan, Rajani K. orcid logoORCID: 0000-0003-1096-448X, Rennie, Allan orcid logoORCID: 0000-0003-4568-316X, Foley, Greg orcid logoORCID: 0000-0002-2284-4218 and Brabazon, Dermot orcid logoORCID: 0000-0003-3214-6381 (2021) Powder characterization – methods, standards and state of the art. In: Yadroitsev, Igor orcid logoORCID: 0000-0002-7556-8675, Yadroitsava, Ina orcid logoORCID: 0000-0003-3132-5724, du Plessis, Anton orcid logoORCID: 0000-0002-4370-8661 and MacDonald, Eric orcid logoORCID: 0000-0002-9356-1223, (eds.) Fundamentals of Laser Powder Bed Fusion of Metals. Additive Manufacturing Materials and Technologies . Elsevier, Amsterdam, pp. 491-527. ISBN 978-0-12-824090-8

Laser Powder Bed Fusion (L-PBF) is a technique in which a layer of metal powder is deposited, melted and solidified using a laser to create a solid layer of metal, with consecutive 2D layers being micro welded to preceding layers to build up fully solid 3D components. This technique has been the focus of considerable interest from research groups and industrial sectors where it is acknowledged to be a multi-variate process capable of producing highly complex geometries in low volumes. One of the most important factors to control is the quality and properties of the powder feedstock used. In this chapter, the various properties of metal powders that have been shown to affect the quality of fabricated parts are discussed. How the powder flows and spreads within the L-PBF process, and how the shape, size and composition of powders are investigated and can lead to different defects and porosities in parts are presented. This chapter provides an overview of how the mechanical and thermal properties of powders can impact the L-PBF process. The sustainability and recycling of such material feedstock within the powder life cycle are discussed. The international standards for analysis and safety considerations of powder which are relevant to additive manufacturing are also presented.
Item Type:Book Section
Uncontrolled Keywords:Powder Rheology; Powder Shape and Morphology; Powder Composition; Mechanical Properties; Laser Powder Bed Fusion (L-PBF); Powder Sustainability
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Mechanical and Manufacturing Engineering
DCU Faculties and Schools > Faculty of Science and Health > School of Biotechnology
Research Institutes and Centres > I-Form
Official URL:https://doi.org/10.1016/B978-0-12-824090-8.00006-8
Copyright Information:© 2021 Elsevier.
ID Code:29252
Deposited On:30 Nov 2023 11:54 by Thomas Murtagh . Last Modified 30 Nov 2023 11:54

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