Influence of the Processing Parameters on the Microstructure and Mechanical Properties of 316L Stainless Steel Fabricated by Laser Powder Bed Fusion

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dc.article.number35
dc.catalogadorgjm
dc.contributor.authorBarrionuevo Chiluiza, Germán Omar
dc.contributor.authorRamos Grez, Jorge
dc.contributor.authorSánchez Sánchez, Xavier
dc.contributor.authorZapata Hidalgo, Daniel
dc.contributor.authorMullo Casillas, José Luis
dc.contributor.authorPuma Araujo, Santiago Daniel
dc.date.accessioned2024-03-13T20:14:22Z
dc.date.available2024-03-13T20:14:22Z
dc.date.issued2024
dc.description.abstractComplex thermo-kinetic interactions during metal additive manufacturing reduce the homogeneity of the microstructure of the produced samples. Understanding the effect of processing parameters over the resulting mechanical properties is essential for adopting and popularizing this technology. The present work is focused on the effect of laser power, scanning speed, and hatch spacing on the relative density, microhardness, and microstructure of 316L stainless steel processed by laser powder bed fusion. Several characterization techniques were used to study the microstructure and mechanical properties: optical, electron microscopies, and spectrometry. A full-factorial design of experiments was employed for relative density and microhardness evaluation. The results derived from the experimental work were subjected to statistical analysis, including the use of analysis of variance (ANOVA) to determine both the main effects and the interaction between the processing parameters, as well as to observe the contribution of each factor on the mechanical properties. The results show that the scanning speed is the most statistically significant parameter influencing densification and microhardness. Ensuring the amount of volumetric energy density (125 J/mm3) used to melt the powder bed is paramount; maximum densification (99.7%) is achieved with high laser power and low scanning speed, while hatch spacing is not statistically significant.
dc.format.extent18 páginas
dc.fuente.origenORCID
dc.identifier.doi10.3390/jmmp8010035
dc.identifier.urihttps://www.mdpi.com/2504-4494/8/1/35
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/84375
dc.information.autorucEscuela de Ingeniería; Barrionuevo Chiluiza, Germán Omar; S/I; 1070731
dc.information.autorucEscuela de Ingeniería; Ramos Grez, Jorge; 0000-0002-9293-3275; 81538
dc.information.autorucEscuela de Ingeniería; Mullo Casillas, José Luis; S/I; 219435
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido completo
dc.revistaJournal of Manufacturing and Materials Processing
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 DEED Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectLaser powder bed fusion
dc.subjectProcess optimization
dc.subjectMaterial characterization
dc.subjectMicrostructural evolution
dc.subjectMechanical properties
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleInfluence of the Processing Parameters on the Microstructure and Mechanical Properties of 316L Stainless Steel Fabricated by Laser Powder Bed Fusion
dc.typeartículo
dc.volumen8
sipa.codpersvinculados1070731
sipa.codpersvinculados81538
sipa.codpersvinculados219435
sipa.trazabilidadORCID;2024-02-19
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