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Published in: Metallography, Microstructure, and Analysis 1/2024

13-02-2024 | Original Research Article

Effect of Rare Earth Elements Addition and Sintering Conditions on the Microstructure and Microhardness of Inconel 718

Authors: H. M. Medrano-Prieto, A. Santos-Beltrán, V. Gallegos-Orozco, M. M. Santos-Beltrán, H. Camacho-Montes, C. G. Garay-Reyes, M. A. Ruiz-Esparza-Rodriguez, I. Estrada-Guel, G. Rodríguez-Cabriales, J. C. Guía-Tello, J. M. Mendoza-Duarte, J. M. Silva-Aceves, J. S. Castro-Carmona, R. Martínez-Sánchez

Published in: Metallography, Microstructure, and Analysis | Issue 1/2024

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Abstract

A series of Inconel 718 alloys modified by additions of 0.1-0.3 of a mixture of rare earth elements Ce:La:Nd:Pr have been synthesized by powder metallurgy. These alloys were sintered by conventional and hot isostatic pressure methods and subject to standard aging treatment. The results showed that adding rare earth elements generates γ′ and γ″ precipitates with a minor size than those reported. Additionally, the presence of rare earth elements causes the formation of La-Ti-Al-O phases that act as reinforcing particles. The highest microhardness values were obtained in the samples with 0.3 wt.% of rare earth elements and sintered by hot isostatic pressure. These hardness values are attributed to the precipitation of the nanophases (γ′ and γ″), the high numeric density of dispersed oxides and carbides, and solid solution strengthening generated by rare earth elements addition and dissolution of elements in the Nb, Ti and Mo rich phases.

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Literature
9.
go back to reference I.M. Makena, M.B. Shongwe, M.M. Ramakokovhu, M.L. Lethabane, Effect of heating rate on the density, hardness and microstructural properties of spark plasma sintered Ni-Fe-Cr alloys. Proc World Congr. Eng. 2, 1–6 (2017) I.M. Makena, M.B. Shongwe, M.M. Ramakokovhu, M.L. Lethabane, Effect of heating rate on the density, hardness and microstructural properties of spark plasma sintered Ni-Fe-Cr alloys. Proc World Congr. Eng. 2, 1–6 (2017)
18.
go back to reference H.V. Atkinson, B.A. Riknson, Hot isostatic processing, 1st edn (Bristol Adam Hilger, Philadelphia, 1991) H.V. Atkinson, B.A. Riknson, Hot isostatic processing, 1st edn (Bristol Adam Hilger, Philadelphia, 1991)
Metadata
Title
Effect of Rare Earth Elements Addition and Sintering Conditions on the Microstructure and Microhardness of Inconel 718
Authors
H. M. Medrano-Prieto
A. Santos-Beltrán
V. Gallegos-Orozco
M. M. Santos-Beltrán
H. Camacho-Montes
C. G. Garay-Reyes
M. A. Ruiz-Esparza-Rodriguez
I. Estrada-Guel
G. Rodríguez-Cabriales
J. C. Guía-Tello
J. M. Mendoza-Duarte
J. M. Silva-Aceves
J. S. Castro-Carmona
R. Martínez-Sánchez
Publication date
13-02-2024
Publisher
Springer US
Published in
Metallography, Microstructure, and Analysis / Issue 1/2024
Print ISSN: 2192-9262
Electronic ISSN: 2192-9270
DOI
https://doi.org/10.1007/s13632-024-01047-4

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