Creep-fatigue-oxidation interactions in a 9Cr–1Mo martensitic steel. Part II: Effect of compressive holding period on fatigue lifetime
| Autor: | B FOURNIER, M SAUZAY, C CAES, M NOBLECOURT, M MOTTOT, A BOUGAULT, V RABEAU, A PINEAU |
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| Přispěvatelé: | Service des Recherches Métallurgiques Appliquées (SRMA), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre des Matériaux (CDM), Mines Paris - PSL (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), Centre des Matériaux (MAT), MINES ParisTech - École nationale supérieure des mines de Paris |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Compressive holding periods
Mechanical Engineering 02 engineering and technology Creep 021001 nanoscience & nanotechnology High temperature Industrial and Manufacturing Engineering 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Martensitic steel Modeling and Simulation Oxidation [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Crack initiation General Materials Science 9Cr 0210 nano-technology Fatigue Oxide cracking |
| Zdroj: | International Journal of Fatigue International Journal of Fatigue, 2008, 30, pp.663-676. ⟨10.1016/j.ijfatigue.2007.05.008⟩ International Journal of Fatigue, Elsevier, 2008, 30, pp.663-676. ⟨10.1016/j.ijfatigue.2007.05.008⟩ |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2007.05.008⟩ |
| Popis: | International audience; Cyclic tests with compressive holding periods were carried out in air at 823 K on a modified 9Cr–1Mo martensitic steel. In accordance with other results published in the literature, compressive holding periods were found more deleterious than tensile ones, i.e. fatigue lifetimes were more severely reduced under compressive holding periods than under tensile holds. For all tested samples a strong influence of oxidation was observed, and a tensile mean stress was measured due to compressive holding periods. To understand the difference between compressive and tensile holding periods, a detailed study of the oxide layers mechanical behavior was carried out. Based on an extensive literature survey, focussed on the fracture behavior of oxide layers, and on Finite Element (FE) calculations, a general scheme for modelling creep-fatigue-oxidation interactions is proposed and discussed. |
| Databáze: | OpenAIRE |
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