Fatigue properties of as-built and heat-treated Inconel 625 obtained by the hybridization of two laser-powder based additive processes - IMT Mines Albi-Carmaux Accéder directement au contenu
Article Dans Une Revue International Journal of Fatigue Année : 2023

Fatigue properties of as-built and heat-treated Inconel 625 obtained by the hybridization of two laser-powder based additive processes

Noémie Martin
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  • PersonId : 1242947
Anis Hor
Etienne Copin
Philippe Lours
Léon Ratsifandrihana
  • Fonction : Auteur
  • PersonId : 1021718

Résumé

Laser Powder Bed Fusion and Direct Energy Deposition processes have complementary characteristics. Their hybridization can increase the variety of applications for additive manufacturing. This paper investigates the static and fatigue behaviors of hybrid Inconel 625 parts using monotonic and high cycle fatigue tests, local strain measurements and self-heating method. Fatigue properties of as-built and recrystallized LPBF, DED and hybrid Inconel 625 were evaluated and compared. The effect of heat treatment on hybrid microstructure homogeneity was investigated. Their consequences on mechanical compatibility and fatigue strength were proved. The fatigue strength was attributed to the competition between defects and the strain compatibilities.
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Dates et versions

hal-04051964 , version 1 (31-03-2023)

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Citer

Noémie Martin, Anis Hor, Etienne Copin, Philippe Lours, Léon Ratsifandrihana. Fatigue properties of as-built and heat-treated Inconel 625 obtained by the hybridization of two laser-powder based additive processes. International Journal of Fatigue, 2023, 172, pp.107650. ⟨10.1016/j.ijfatigue.2023.107650⟩. ⟨hal-04051964⟩
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