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dc.contributor.authorVilanova, Mireia
dc.contributor.authorEscribano García, Rubén
dc.contributor.authorGuraya Díez, María Teresa
dc.contributor.authorSan Sebastián Hurtado, María
dc.date.accessioned2020-11-17T13:28:29Z
dc.date.available2020-11-17T13:28:29Z
dc.date.issued2020-10-30
dc.identifier.citationMaterials 13(21) : (2020) // Article ID 4879es_ES
dc.identifier.issn1996-1944
dc.identifier.urihttp://hdl.handle.net/10810/48217
dc.description.abstractA method to find the optimum process parameters for manufacturing nickel-based superalloy Inconel 738LC by laser powder bed fusion (LPBF) technology is presented. This material is known to form cracks during its processing by LPBF technology; thus, process parameters have to be optimized to get a high quality product. In this work, the objective of the optimization was to obtain samples with fewer pores and cracks. A design of experiments (DoE) technique was implemented to define the reduced set of samples. Each sample was manufactured by LPBF with a specific combination of laser power, laser scan speed, hatch distance and scan strategy parameters. Using the porosity and crack density results obtained from the DoE samples, quadratic models were fitted, which allowed identifying the optimal working point by applying the response surface method (RSM). Finally, five samples with the predicted optimal processing parameters were fabricated. The examination of these samples showed that it was possible to manufacture IN738LC samples free of cracks and with a porosity percentage below 0.1%. Therefore, it was demonstrated that RSM is suitable for obtaining optimum process parameters for IN738LC alloy manufacturing by LPBF technology.es_ES
dc.description.sponsorshipThis research was funded by Elkartek programme, grant number KK-2018/00115, which is part of the Economic Development Department of the Basque Country Government.es_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subjectlaser powder bed fusion (LPBF)es_ES
dc.subjectInconel 738LCes_ES
dc.subjectresponse surface method (RSM)es_ES
dc.subjectprocess parameter optimizationes_ES
dc.subjectcrackinges_ES
dc.titleOptimizing Laser Powder Bed Fusion Parameters for IN-738LC by Response Surface Methodes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.date.updated2020-11-12T14:13:52Z
dc.rights.holder2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).es_ES
dc.relation.publisherversionhttps://www.mdpi.com/1996-1944/13/21/4879/htmes_ES
dc.identifier.doi10.3390/ma13214879
dc.departamentoesIngeniería Minera y Metalúrgica y Ciencia de los Materiales
dc.departamentoeuMeatze eta metalurgia ingeniaritza materialen zientzia


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2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).