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Effect of Corrosion on the High Cycle Fatigue Strength of Martensitic Stainless Steel X12CrNiMoV12-3

Article dans une revue avec comité de lecture
Auteur
EL MAY, Mohamed
ccPALIN-LUC, Thierry
ccSAINTIER, Nicolas
DEVOS, Olivier

URI
http://hdl.handle.net/10985/6515
Date
2012

Résumé

This paper addresses the effects of corrosion on the high cycle fatigue (HCF) strength of a high mechanical strength martensitic stainless steel (X12CrNiMoV12-3) that is used in aeronautic applications. HCF tests (between 105 and 107 cycles) were carried out in two environments: (i) in air and (ii) in an aqueous solution (pH = 6) of 0.1 M NaCl + 0.044 M Na2SO4 at a loading frequency of 120 Hz. Surface crack initiation is observed in air, whereas in solution, the crack initiated at corrosion defects. The decrease observed in the corrosion fatigue strength of specimens at 107 cycles was 33% of that of similar specimens tested in air. The electrochemical behaviour of the passive film was investigated during fatigue testing in a NaCl aqueous solution by monitoring the free potential and through electrochemical impedance spectroscopy (EIS). Based on fractography analysis and the EIS tests results, fatigue crack initiation mechanisms in air and in the NaCl aqueous solution were identified. A scenario for fatigue crack initiation is proposed based on the physical evidence. Local passive film ruptures are the cause of the corrosion fatigue crack initiation. The film is broken by material strain from the applied cyclic stress during fatigue testing, causing increased local corrosive attack. This effect has been shown at 10 Hz and 120 Hz because the characteristic time for repassivation for the steel is very low compared to the period of the cyclic loading.

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  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

Documents liés

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  • Modelling of corrosion fatigue crack initiation on martensitic stainless steel in high cycle fatigue regime 
    Article dans une revue avec comité de lecture
    EL MAY, Mohamed; ccSAINTIER, Nicolas; ccPALIN-LUC, Thierry; DEVOS, Olivier; BRUCELLE, Olivier (Elsevier, 2018)
    This paper presents an analytical model for assessing the corrosion fatigue crack initiation life on a martensitic stainless steel X12CrNiMoV12-3 in high cycle fatigue regime (between 105 and 107 cycles). Based on in-situ ...
  • Non-local high cycle fatigue strength criterion for metallic materials with corrosion defects 
    Article dans une revue avec comité de lecture
    EL MAY, Mohamed; ccSAINTIER, Nicolas; ccPALIN-LUC, Thierry; DEVOS, Olivier (Wiley-Blackwell, 2015)
    This paper proposes a volumetric high cycle fatigue (HCF) strength criterion able to quantify the influence of natural corrosion pits on the fatigue limit of a martensitic stainless steel with high mechanical strength. ...
  • In situ synchrotron ultrasonic fatigue testing device for 3D characterisation of internal crack initiation and growth 
    Article dans une revue avec comité de lecture
    MESSAGER, Alexandre; JUNET, Arnaud; ccPALIN-LUC, Thierry; ccBUFFIERE, Jean-Yves; EL MAY, Mohamed; GAILLARD, Yves; KING, Andrew; BONNIN, Anne; NADOT, Yves; ccRANC, Nicolas; ccSAINTIER, Nicolas (Wiley-Blackwell, 2020)
    This work presents a new ultrasonic fatigue testing device for studying the initiation and propagation mechanisms of internal microstructurally short fatigue cracks using in situ synchrotron tomography. Its principle is ...
  • Effects of LCF Loadings on the HCF Life of Notched Specimens in Ferritic-Bainitic Steel 
    Article dans une revue avec comité de lecture
    BIDOUARD, Hadrien; ccPALIN-LUC, Thierry; ccSAINTIER, Nicolas; DUMAS, Christian; EL DSOKI, Chalid; KAUFMANN, Heinz; SONSINO, Cetin Morris (2009)
    Fatigue tests were performed on ferritic bainitic steel notched specimens (Kt = 2.5) under load controlled constant amplitude loading. These tests show that under constant amplitude tension compression loading, periodical ...
  • Effects of LCF Loadings on the HCF Life of Notched Specimens in Ferritic-Bainitic Steel 
    Article dans une revue avec comité de lecture
    BIDOUARD, Hadrien; ccPALIN-LUC, Thierry; ccSAINTIER, Nicolas; KAUFMANN, Heinz; DUMAS, Christian; EL DSOKI, Chalid; KAUFMANN, Heinz; SONSINO, Cetin Morris (2009)
    Fatigue tests were performed on ferritic bainitic steel notched specimens (Kt = 2.5) under load controlled constant amplitude loading. These tests show that under constant amplitude tension compression loading, periodical ...

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