Article
Version 1
Preserved in Portico This version is not peer-reviewed
High Throughput Printability Screening of AlMgSi Alloys for Powder Bed Fusion
Version 1
: Received: 13 April 2023 / Approved: 13 April 2023 / Online: 13 April 2023 (07:48:12 CEST)
A peer-reviewed article of this Preprint also exists.
Leijon, F.; Moverare, J. High-Throughput Printability Screening of AlMgSi Alloys for Powder Bed Fusion. Metals 2023, 13, 1114. Leijon, F.; Moverare, J. High-Throughput Printability Screening of AlMgSi Alloys for Powder Bed Fusion. Metals 2023, 13, 1114.
Abstract
The importance of both recycling and additive manufacturing (AM) is increasing, however there has been a limited focus on development of AM alloys that are recyclably compatible with the larger scrap loops of wrought 5xxx, 6xxx and cast 3xx aluminium alloys. In this work the powder bed fusion (PBF) printability of AlMgSi alloys in the interval of 0-30wt%Mg and 0-4wt%Si is screened experimentally with a high throughput method. This method produces PBF mimicked material by PVD co-sputtering followed by laser remelting. Strong evidence was found for AlMgSi alloys being printable in two different composition ranges; Si+Mg<0.7wt% or for Si+2/3Mg>4wt% when Mg < 3wt% and Si > 3wt%. Increasing the amount of Mg and Si influence the grain structure by introducing fine columnar grains at the melt pool boundary, although the melt pool interior was unaffected. Hardness in as-built state increased with both Mg and Si, alt-hough Si had neglectable effect at low levels of Mg. Both evaporative loss of Mg and the amount of Mg in solid solution increased linearly with the amount of Mg.
Keywords
Aluminium alloys; AlMgSi; Printability; Powder Bed Fusion; High Through Put; Screening.
Subject
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
