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Materials Science in Additive Manufacturing                       Powder alteration caused by L-PBF process



            each cell size. We observed that the smaller the cell size,   Availability of data
            the lower the percentage of small particles. The particles
            diameters D-values increased as the lattice cell size became   Raw data are available from the corresponding author on
                                                               reasonable request.
            smaller. The morphology of the particles stuck inside
            the lattice cylinders was impacted, accompanied by the   References
            formation of aggregates, elongated, broken, “clip-clap” and
            shattered particles.                               1.   Diegel O, Nordin A, Motte D, 2019, A Practical Guide to
                                                                  Design for Additive Manufacturing. Berlin: Springer.
              Both experiments 2 and 3 confirmed that when the   2.   Singh S, Prakash C, Singh R, 2020, 3D Printing in Biomedical
            space between printed parts is reduced, the powder bed   Engineering. Berlin: Springer.
            particles  become  coarser  and  the  proportion  of  fines
            particles reduces.                                 3.   Dawes J, Bowerman R, Trepleton R, 2015, Introduction
                                                                  to the additive manufacturing powder metallurgy supply
              From  these  results,  we  confirm  the  printing  process   chain. Johnson Matthey Technol Rev, 59: 243–256.
            generating  spatters  and  particle  agglomerations  causes      https://doi.org/10.1595/205651315x688686
            the degradation and alteration of the powder bed PSD
            and morphology. After significant courses of recycling,   4.   Pasebani S, Ghayoor M, Badwe S,  et al., 2018, Effects
                                                                  of atomizing media and post processing on mechanical
            the PSD of the powder showed more coarse particles    properties of 17-4 PH stainless steel manufactured via
            and less fine particles, as well as a relevant increase in the   selective laser melting. Addit Manuf, 22: 127–137.
            proportion of large particles and significant presence of
            aggregates, deformed and elongated particles within the      https://doi.org/10.1016/j.addma.2018.05.011
            recycled powder.                                   5.   Tan JH, Wong WLE, Dalgarno KW, 2017, An overview of
                                                                  powder granulometry on feedstock and part performance in
            Acknowledgments                                       the selective laser melting process. Addit Manuf, 18: 228–255.
            The authors would like to express their appreciation for      https://doi.org/10.1016/j.addma.2017.10.011
            the support provided by Jonathan Coudé, Karel J. Uhlir,   6.   Herzog  D,  Seyda  V,  Wycisk  E,  et al.,  2016,  Additive
            Loubert Suzie, Charles-André Fraser, Dany Morin, and   manufacturing of metals. Acta Mater, 117: 371–392.
            Richard Lafrance for their assistance in this project.     https://doi.org/10.1016/j.actamat.2016.07.019
            Funding                                            7.   Kelkar RM, 2019, High Quality Spherical Powders for
                                                                  Additive Manufacturing Processes Along with Methods of
            This research was funded by NSERC, grant CDEPJ/507533.  their Formation. Google Patents.
            Conflict of interest                               8.   Li R, Shi Y, Wang Z, et al., 2010, Densification behavior of
                                                                  gas and water atomized 316L stainless steel powder during
            The authors declare no conflicts of interest.         selective laser melting. Appl Surf Sci, 256: 4350–4356.
            Author contributions                                  https://doi.org/10.1016/j.apsusc.2010.02.030
                                                               9.   Brika SE, Letenneur M, Dion CA, et al., 2020, Influence of
            Conceptualization: Othmane Rayan, Jean Brousseau      particle morphology and size distribution on the powder
            Formal analysis: Othmane Rayan, Jean Brousseau, Claude   flowability and laser powder bed fusion manufacturability
               Belzile                                            of Ti-6Al-4V alloy. Addit Manuf, 31: 100929.
            Investigation: Othmane Rayan, Jean Brousseau, Claude      https://doi.org/10.1016/j.addma.2019.100929
               Belzile
            Methodology: Othmane Rayan, Jean Brousseau         10.  Sutton AT, Kriewall CS, Karnati S, et al., 2020, Evolution of AISI
            Writing – original draft: Othmane Rayan               304L stainless steel part properties due to powder recycling in
            Writing – review and editing: Othmane Rayan, Jean     laser powder-bed fusion. Addit Manuf, 36: 101439.
               Brousseau, Claude Belzile, Abderazak El Ouafi.     https://doi.org/10.1016/j.addma.2020.101439
                                                               11.  Soundarapandiyan G, Johnston C, Khan RHU, et al., 2021,
            Ethics approval and consent to participate            The effects of powder reuse on the mechanical response
            Not applicable.                                       of electron beam additively manufactured Ti6Al4V parts.
                                                                  Addit Manuf, 46: 102101.
            Consent for publication                               https://doi.org/10.1016/j.addma.2021.102101
            Not applicable.                                    12.  Nagesha BK, Dhinakaran V, Varsha Shree M, et al., 2020,


            Volume 2 Issue 3 (2023)                         12                      https://doi.org/10.36922/msam.1781
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