Optimizing Laser Powder Bed Fusion Parameters for IN-738LC by Response Surface Method
dc.contributor.author | Vilanova, Mireia | |
dc.contributor.author | Escribano García, Rubén | |
dc.contributor.author | Guraya Díez, María Teresa | |
dc.contributor.author | San Sebastián Hurtado, María | |
dc.date.accessioned | 2020-11-17T13:28:29Z | |
dc.date.available | 2020-11-17T13:28:29Z | |
dc.date.issued | 2020-10-30 | |
dc.identifier.citation | Materials 13(21) : (2020) // Article ID 4879 | es_ES |
dc.identifier.issn | 1996-1944 | |
dc.identifier.uri | http://hdl.handle.net/10810/48217 | |
dc.description.abstract | A 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.sponsorship | This 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.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | laser powder bed fusion (LPBF) | es_ES |
dc.subject | Inconel 738LC | es_ES |
dc.subject | response surface method (RSM) | es_ES |
dc.subject | process parameter optimization | es_ES |
dc.subject | cracking | es_ES |
dc.title | Optimizing Laser Powder Bed Fusion Parameters for IN-738LC by Response Surface Method | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2020-11-12T14:13:52Z | |
dc.rights.holder | 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/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1996-1944/13/21/4879/htm | es_ES |
dc.identifier.doi | 10.3390/ma13214879 | |
dc.departamentoes | Ingeniería Minera y Metalúrgica y Ciencia de los Materiales | |
dc.departamentoeu | Meatze eta metalurgia ingeniaritza materialen zientzia |
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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/).