Evaluation of recycled and reused metal powders for DMLS 3D printing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F24%3A43973696" target="_blank" >RIV/49777513:23210/24:43973696 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1996-1944/17/24/6184" target="_blank" >https://www.mdpi.com/1996-1944/17/24/6184</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma17246184" target="_blank" >10.3390/ma17246184</a>
Alternative languages
Result language
angličtina
Original language name
Evaluation of recycled and reused metal powders for DMLS 3D printing
Original language description
Metal powders for additive manufacturing are expensive and producing new ones from mined metals has a negative ecological impact. In this work, recycled and reused metal powders from MS1 steel for Direct Metal Laser Sintering (DMLS) 3D printing were evaluated in the laboratory. The powders were recycled by melting followed by gas atomizing. Virgin, recycled and reused metal powders were evaluated using Scanning-Electron Microscopy (SEM), Energy-Dispersive X-Ray Spectroscopy (EDS), X-Ray Diffraction (XRD), metallography analysis, microhardness measurements, Particle Size Distribution (PSD), shape factor by Digital Image Processing (DIP) and flowability testing. The results showed that the particle distribution was modified after recycling. Kurtosis analysis revealed a reduction from -0,64 for virgin powder to -1,29 for recycled powders. A positive skewness was obtained a consequently, smaller particles were found in recycled powder. The shape factor was also modified and changed from 1,57 for virgin powders to 1,28 for recycled powders. The microstructure also changed and austenite was found in recycled powders. The microhardness of recycled powder decreased by 39% compared to the virgin powder. Recycled powders did not flow using two different funnels to evaluate their flowability. The flowability of used powder was reduced from 4,3 s to 2,9 s.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials
ISSN
1996-1944
e-ISSN
1996-1944
Volume of the periodical
17
Issue of the periodical within the volume
24
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
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UT code for WoS article
001384610700001
EID of the result in the Scopus database
2-s2.0-85213289406