Low Cycle Fatigue Behaviour of ODS Steels for Nuclear Application

Abstract:

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This study deals with the low cycle fatigue (LCF) behaviour of two steels strengthened by oxide dispersion. The ODS Eurofer steel shows cyclic softening, slower than in the case of the same steel without oxide particles. The 14Cr ODS ferritic steel is cyclically stable, even a slight cyclic hardening is observed at 650 °C. The reasons for this different behaviour lie probably in the less resistant matrix with a lot of weak subgrain boundaries in ODS Eurofer, because no clear difference in the oxide particles distribution was found.

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Periodical:

Edited by:

Pavel Šandera

Pages:

556-559

DOI:

10.4028/www.scientific.net/KEM.465.556

Citation:

I. Kuběna et al., "Low Cycle Fatigue Behaviour of ODS Steels for Nuclear Application", Key Engineering Materials, Vol. 465, pp. 556-559, 2011

Online since:

January 2011

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Price:

$35.00

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