Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters

We developed a coupled CALPHAD and finite element-based computational model of the Laser Powder Bed Fusion (LPBF) process for HAYNES230, considering the feedstock composition and packing density. We further used this model to investigate the effect of variation in feedstock composition and print par...

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Autor principal:	Kasra Momeni
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Metal 3D printing Laser powder bed fusion CALPHAD HAYNES230 alloy Finite element Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/817e27cff0b841c7832847bf813c8a5e
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spelling	oai:doaj.org-article:817e27cff0b841c7832847bf813c8a5e2021-12-04T04:34:29ZSensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters2238-785410.1016/j.jmrt.2021.11.080https://doaj.org/article/817e27cff0b841c7832847bf813c8a5e2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013594https://doaj.org/toc/2238-7854We developed a coupled CALPHAD and finite element-based computational model of the Laser Powder Bed Fusion (LPBF) process for HAYNES230, considering the feedstock composition and packing density. We further used this model to investigate the effect of variation in feedstock composition and print parameters on the quality of the final printed part. Sensitivity of the maximum reached temperature to variations in characteristics of the laser source is also studied considering a single-track laser scan on a layer of metal powder. We analyzed temperature evolution in the powder bed and melt pool geometry along the path of the laser. Our results indicate that the LPBF process of HAYNES230 alloy requires a powder layer thickness of ∼20 μm and laser spot size ∼30 μm radius compared to other alloys. It is essential to achieve sufficient melt pool depth necessary for cohesion with the substrate while avoiding large melt pool width that adversely affects the formation of cracks and residual stresses. We also revealed that reducing the laser power or increasing scan speed drastically reduces peak temperature while less susceptible to solute composition.Kasra MomeniElsevierarticleMetal 3D printingLaser powder bed fusionCALPHADHAYNES230 alloyFinite elementMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 6453-6463 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Metal 3D printing Laser powder bed fusion CALPHAD HAYNES230 alloy Finite element Mining engineering. Metallurgy TN1-997
spellingShingle	Metal 3D printing Laser powder bed fusion CALPHAD HAYNES230 alloy Finite element Mining engineering. Metallurgy TN1-997 Kasra Momeni Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters
description	We developed a coupled CALPHAD and finite element-based computational model of the Laser Powder Bed Fusion (LPBF) process for HAYNES230, considering the feedstock composition and packing density. We further used this model to investigate the effect of variation in feedstock composition and print parameters on the quality of the final printed part. Sensitivity of the maximum reached temperature to variations in characteristics of the laser source is also studied considering a single-track laser scan on a layer of metal powder. We analyzed temperature evolution in the powder bed and melt pool geometry along the path of the laser. Our results indicate that the LPBF process of HAYNES230 alloy requires a powder layer thickness of ∼20 μm and laser spot size ∼30 μm radius compared to other alloys. It is essential to achieve sufficient melt pool depth necessary for cohesion with the substrate while avoiding large melt pool width that adversely affects the formation of cracks and residual stresses. We also revealed that reducing the laser power or increasing scan speed drastically reduces peak temperature while less susceptible to solute composition.
format	article
author	Kasra Momeni
author_facet	Kasra Momeni
author_sort	Kasra Momeni
title	Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters
title_short	Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters
title_full	Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters
title_fullStr	Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters
title_full_unstemmed	Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters
title_sort	sensitivity of laser powder bed fusion additive manufactured haynes230 to composition and print parameters
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/817e27cff0b841c7832847bf813c8a5e
work_keys_str_mv	AT kasramomeni sensitivityoflaserpowderbedfusionadditivemanufacturedhaynes230tocompositionandprintparameters
_version_	1718372978482216960

Sensitivity of laser powder bed fusion additive manufactured HAYNES230 to composition and print parameters

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