Modeling of precipitation strengthening in Inconel 718 including non-spherical γ'' precipitates

Mohammad Reza Ahmadi, markus Rath, Erwin Povoden-Karadeniz, sophie Primig, Tomasch Wojcik, Anette Danninger, Martin Stockinger, Ernst kozeschnik

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

In this study, the classical strengthening equations for weak and strong particles are advanced to account for oblate-shaped γ'' precipitates in Inconel 718. The model is verified on quantitative stereology of size and distribution for both shearable and non-shearable mechanisms. The evolution of precipitation strengthening of aged superalloy Inconel 718 is simulated. In addition to precipitation strengthening, contributions of solid solution strengthening and the grain size effect are considered. Simulation results indicate a sound prediction of the final yield strength based on the presented model.
Originalspracheenglisch
Aufsatznummer 055005
Seiten (von - bis)1-16
Seitenumfang16
FachzeitschriftModelling and simulation in materials science and engineering
PublikationsstatusVeröffentlicht - Jul 2017

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Inconel (trademark)
Strengthening
Precipitates
precipitates
Strengthening (metal)
heat resistant alloys
yield strength
Superalloys
Modeling
Yield stress
Solid solutions
solid solutions
Stereology
grain size
Acoustic waves
Superalloy
acoustics
Size Effect
Grain Size
predictions

Schlagwörter

    Dies zitieren

    Ahmadi, M. R., Rath, M., Povoden-Karadeniz, E., Primig, S., Wojcik, T., Danninger, A., ... kozeschnik, E. (2017). Modeling of precipitation strengthening in Inconel 718 including non-spherical γ'' precipitates. Modelling and simulation in materials science and engineering, 1-16. [ 055005 ].

    Modeling of precipitation strengthening in Inconel 718 including non-spherical γ'' precipitates. / Ahmadi, Mohammad Reza; Rath, markus; Povoden-Karadeniz, Erwin; Primig, sophie; Wojcik, Tomasch; Danninger, Anette; Stockinger, Martin; kozeschnik, Ernst.

    in: Modelling and simulation in materials science and engineering, 07.2017, S. 1-16.

    Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

    Ahmadi, MR, Rath, M, Povoden-Karadeniz, E, Primig, S, Wojcik, T, Danninger, A, Stockinger, M & kozeschnik, E 2017, 'Modeling of precipitation strengthening in Inconel 718 including non-spherical γ'' precipitates' Modelling and simulation in materials science and engineering, S. 1-16.
    Ahmadi, Mohammad Reza ; Rath, markus ; Povoden-Karadeniz, Erwin ; Primig, sophie ; Wojcik, Tomasch ; Danninger, Anette ; Stockinger, Martin ; kozeschnik, Ernst. / Modeling of precipitation strengthening in Inconel 718 including non-spherical γ'' precipitates. in: Modelling and simulation in materials science and engineering. 2017 ; S. 1-16.
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    abstract = "In this study, the classical strengthening equations for weak and strong particles are advanced to account for oblate-shaped γ'' precipitates in Inconel 718. The model is verified on quantitative stereology of size and distribution for both shearable and non-shearable mechanisms. The evolution of precipitation strengthening of aged superalloy Inconel 718 is simulated. In addition to precipitation strengthening, contributions of solid solution strengthening and the grain size effect are considered. Simulation results indicate a sound prediction of the final yield strength based on the presented model.",
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    AU - Ahmadi, Mohammad Reza

    AU - Rath, markus

    AU - Povoden-Karadeniz, Erwin

    AU - Primig, sophie

    AU - Wojcik, Tomasch

    AU - Danninger, Anette

    AU - Stockinger, Martin

    AU - kozeschnik, Ernst

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    N2 - In this study, the classical strengthening equations for weak and strong particles are advanced to account for oblate-shaped γ'' precipitates in Inconel 718. The model is verified on quantitative stereology of size and distribution for both shearable and non-shearable mechanisms. The evolution of precipitation strengthening of aged superalloy Inconel 718 is simulated. In addition to precipitation strengthening, contributions of solid solution strengthening and the grain size effect are considered. Simulation results indicate a sound prediction of the final yield strength based on the presented model.

    AB - In this study, the classical strengthening equations for weak and strong particles are advanced to account for oblate-shaped γ'' precipitates in Inconel 718. The model is verified on quantitative stereology of size and distribution for both shearable and non-shearable mechanisms. The evolution of precipitation strengthening of aged superalloy Inconel 718 is simulated. In addition to precipitation strengthening, contributions of solid solution strengthening and the grain size effect are considered. Simulation results indicate a sound prediction of the final yield strength based on the presented model.

    KW - precipitation strengthening, shearing mechanism, oblate precipitate

    M3 - Article

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    JO - Modelling and simulation in materials science and engineering

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