Record link: 
http://hdl.handle.net/20.500.12708/147401
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Title: 
Modeling of precipitation strengthening in Inconel 718 including non-spherical 𝛾'' precipitates
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Citation: 
Ahmadi, M. R., 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, 25(5), Article 055005. https://doi.org/10.1088/1361-651x/aa6f54
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Publisher DOI: 
10.1088/1361-651x/aa6f54
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Ahmadi, Mohammad Reza 
Rath, Markus 
Povoden-Karadeniz, Erwin 
Primig, Sophie 
Wojcik, Tomasz 
Danninger, Anette 
Stockinger, M. 
Kozeschnik, Ernst 
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Organisational Unit: 
E308-03 - Forschungsbereich Werkstofftechnik 
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Journal: 
Modelling and Simulation in Materials Science and Engineering 
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ISSN: 
0965-0393
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Date (published): 
1-Jul-2017
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Number of Pages: 
16
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Publisher: 
IOP PUBLISHING LTD
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Peer reviewed: 
Yes
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Keywords: 
Computer Science Applications; Modeling and Simulation; Mechanics of Materials; Condensed Matter Physics; General Materials Science
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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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Research Areas: 
Metallic Materials: 20%
Materials Characterization: 20%
Computational Materials Science: 60%
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Science Branch: 
Werkstofftechnik
Metallurgie
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