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Article dans une revue
Evolution of dislocation density, size of subgrains and MX-type precipitates in a P91 steel during creep and during thermal ageing at 600 °C for more than 100,000 h
Abstract : There are rather few quantitative data on the microstructure of the 9–12%Cr heat resistant steels after long-term creep. This paper presents results of the quantitative measurement of the size of MX precipitates, subgrain size and dislocation density in a P91 steel that had been creep tested for 113,431 h at 600 °C. The same measurements were conducted in the same P91 steel in the as received conditions. Transmission electron microscopy investigations were conducted using thin foils and revealed a decrease in dislocation density and an increase in subgrain size after creep exposure. MX carbonitrides are very stable during thermal and creep exposure of P91 steel at 600 °C up to 113,431 h. Electron backscatter diffraction (EBSD) investigations also revealed a significant change in the substructure of the steel after creep exposure.
Littérature citée [22 références]
https://hal-mines-paristech.archives-ouvertes.fr/hal-00491033
Contributeur : Bibliothèque Umr7633 <>
Soumis le : jeudi 10 juin 2010 - 14:34:00
Dernière modification le : jeudi 24 septembre 2020 - 18:30:07
Archivage à long terme le : : jeudi 30 juin 2011 - 12:58:35
Contributeur : Bibliothèque Umr7633 <>
Soumis le : jeudi 10 juin 2010 - 14:34:00
Dernière modification le : jeudi 24 septembre 2020 - 18:30:07
Archivage à long terme le : : jeudi 30 juin 2011 - 12:58:35
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PanaitMSEA527.pdf
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