Constitutive models for bcc engineering iron alloys exposed to thermal-mechanical fatigue
| Autor: | Fabien Szmytka, Laurent Bucher, Luc Rémy |
|---|---|
| Přispěvatelé: | Centre des Matériaux (MAT), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), PSA Peugeot - Citroën (PSA), PSA Peugeot Citroën (PSA) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Cast iron
Materials science Model prediction Constitutive equation Flow (psychology) Ferritic stainless steel 02 engineering and technology engineering.material Industrial and Manufacturing Engineering [SPI.MAT]Engineering Sciences [physics]/Materials 0203 mechanical engineering Thermal mechanical General Materials Science Constitutive equations Composite material Viscoplasticity Mechanical Engineering Metallurgy Iron alloys 021001 nanoscience & nanotechnology Thermal-mechanical fatigue 020303 mechanical engineering & transports Mechanics of Materials Modeling and Simulation engineering Dislocation 0210 nano-technology |
| Zdroj: | International Journal of Fatigue International Journal of Fatigue, Elsevier, 2013, 53, pp.2-14. ⟨10.1016/j.ijfatigue.2011.11.007⟩ |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2011.11.007⟩ |
| Popis: | International audience; The progress in designing high temperature components relies on more accurate viscoplastic constitutive models. The capability of various models under high temperature and variable temperature conditions is investigated for two body centred cubic alloys, cast iron and ferritic stainless steel. Improvements are shown to overcome problems encountered by standard viscoplastic models. Firstly a physically based modified flow equation predicts reliably the behaviour of cast iron under thermal-mechanical loading. Secondly further improvement is proposed drawing on dislocation models to describe static recovery effects in stainless steels. Good agreement is thus obtained between experiment and model prediction under various thermal mechanical loading path. |
| Databáze: | OpenAIRE |
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