Inconel 718 is a popular superalloy with high strength and corrosion-resistance properties that make it widely used in aero- space and nuclear industries. The conventional production of Inconel 718 powder feedstock involves a considerable amount of energy consumption and greenhouse gas emissions. This study investigates the feasibility of using atomized metallic scrap to produce Inconel 718 powder feedstock, as a more sustainable alternative. Life cycle assessments showed that this approach reduces carbon footprint and energy consumption by more than 90% compared to conventional production meth- ods. The study also carried out comparative microstructural, static and fatigue analyses to address concerns about potential impurities in the secondary-source powder feedstock. The results indicate that this secondary-source powder feedstock can achieve properties comparable to those of conventionally processed powders, with negligible loss in ductility and fatigue strength, without requiring ad-hoc tuning of the LPBF process parameters. Overall, the findings suggest that using Inconel 718 powder feedstock produced from secondary sources can be a promising and sustainable alternative to conventional production methods.

Atomized scrap powder feedstock for sustainable Inconel 718 additive manufacturing via LPBF: a study of static and fatigue properties / Benedetti, M.; Perini, M.; Vanazzi, M.; Giorgini, A.; Macoretta, G.; Menapace, C.. - In: PROGRESS IN ADDITIVE MANUFACTURING. - ISSN 2363-9512. - 2023:(2023). [10.1007/s40964-023-00547-z]

Atomized scrap powder feedstock for sustainable Inconel 718 additive manufacturing via LPBF: a study of static and fatigue properties

Benedetti, M.
Primo
;
Menapace, C.
Ultimo
2023-01-01

Abstract

Inconel 718 is a popular superalloy with high strength and corrosion-resistance properties that make it widely used in aero- space and nuclear industries. The conventional production of Inconel 718 powder feedstock involves a considerable amount of energy consumption and greenhouse gas emissions. This study investigates the feasibility of using atomized metallic scrap to produce Inconel 718 powder feedstock, as a more sustainable alternative. Life cycle assessments showed that this approach reduces carbon footprint and energy consumption by more than 90% compared to conventional production meth- ods. The study also carried out comparative microstructural, static and fatigue analyses to address concerns about potential impurities in the secondary-source powder feedstock. The results indicate that this secondary-source powder feedstock can achieve properties comparable to those of conventionally processed powders, with negligible loss in ductility and fatigue strength, without requiring ad-hoc tuning of the LPBF process parameters. Overall, the findings suggest that using Inconel 718 powder feedstock produced from secondary sources can be a promising and sustainable alternative to conventional production methods.
2023
Benedetti, M.; Perini, M.; Vanazzi, M.; Giorgini, A.; Macoretta, G.; Menapace, C.
Atomized scrap powder feedstock for sustainable Inconel 718 additive manufacturing via LPBF: a study of static and fatigue properties / Benedetti, M.; Perini, M.; Vanazzi, M.; Giorgini, A.; Macoretta, G.; Menapace, C.. - In: PROGRESS IN ADDITIVE MANUFACTURING. - ISSN 2363-9512. - 2023:(2023). [10.1007/s40964-023-00547-z]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/399030
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