A Yield Stress Model for a Solution-Treated Ni-Based Superalloy during Plastic Deformation
Abstract: Up to now, there are few reports on the yield behavior of Ni-based superalloy during plastic deformation. However, an accurate yield stress model is significant for simulating the plastic forming process by cellular automaton or finite element methods. Therefore, the yield behavior of a solution-treated Ni-based superalloy is studied by hot compression tests. In order to evaluate yield stresses from the measured flow stress curves, the yield process is analyzed in terms of dislocation theory. Then, yield stresses at different deformation temperatures and strain rates are clearly determined. The experimental results show that the yield stresses are highly sensitive to deformation temperature and strain rate. The determined yield stress almost linearly increases with the increase of the logarithm of strain rate or the reciprocal of deformation temperature. A yield stress model is developed to correlate the yield behavior of the studied solution-treated Ni-based superalloy with deformation temperature, strain rate, and strengthening effect of alloying elements. The developed model can well describe the yield behavior of the studied solution-treated Ni-based superalloy.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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A Yield Stress Model for a Solution-Treated Ni-Based Superalloy during Plastic Deformation ; volume:37 ; number:9-10 ; year:2018 ; pages:849-856 ; extent:8
High temperature materials and processes ; 37, Heft 9-10 (2018), 849-856 (gesamt 8)
- Urheber
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Liu, Yan-Xing
Lin, Y.C
- DOI
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10.1515/htmp-2017-0096
- URN
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urn:nbn:de:101:1-2501280327080.708556004673
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:31 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Liu, Yan-Xing
- Lin, Y.C
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