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Surface & Coatings Technology,
205(17-18):4243-4248.
2011
Equipe: Département CP2S : Surface et Interface, réactivité chimique des matériaux |
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Solid State Phenomena,
172-174(Part 1):1214-1219
2011
ISSN: 1012-0394
Resume: We have adapted the Quickhull algorithm with the general dimension Beneath-Beyond algorithm [6] for computing the convex hull of the Gibbs energy hypersurface of multicomponent two-phase alloys. We illustrate the salient features of our method with calculations of isothermal ferrite-austenite equilibria in Fe-C-Cr. Finally, successive equilibrium calculations in a Fe-C-Cr-Mo steel over a large temperature range show the benefit of computing the convex hull before performing the conventional Newton-Raphson search. Equipe: Département SI2M : Microstructures et Contraintes |
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Solid State Phenomena,
172-174(Part 1):839-844
2011
ISSN: 1012-0394
Resume: A detailed analysis of the evolution of industrial Dual Phase (DP) steel microstructures is carried out as a function of various annealing and tempering conditions. Advanced characterization techniques such as Parallel Electron Energy Loss Spectroscopy (PEELS) in the TEM and high spatial resolution Secondary Ion Mass Spectrometry (NanoSIMS) are employed in order to provide qualitative and quantitative measurements of local carbon concentration in the martensite. For certain annealing and tempering conditions, it is observed that local variations in carbon levels have occurred inside the individual martensite islands. These carbon variations strongly influence the damage behaviour of the steel. During tensile tests, a clear dependence of the damage mode on the local martensite carbon content is observed. Better knowledge of the relationship between the microstructure evolution at the sub-grain level and the damage behaviour can facilitate the design of DP steels with improved damage resistance. Equipe: Département SI2M : Microstructures et Contraintes |
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PHYSICAL REVIEW B,
84(15)
2011
ISSN: 1098-0121
Equipe: Département P2M : Surfaces et Spectroscopies |
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International journal of hydrogen energy,
36:5431-5434
2011
Equipe: Département CP2S : Matériaux Carbonés |
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Cement and Concrete Composite,
33:346â??352
2011
Equipe: Département CP2S : Matériaux pour le Génie Civil |
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Physical Review Letters,
106(5)
2011
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |
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Physical Review Letters,
106(5)
2011
Equipe: Centre de Compétences : MiNaLor micro et nanotechnologies |
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Journal of Materials Research,
26(15):1872-1878
2011
Equipe: Département CP2S : Surface et Interface, réactivité chimique des matériaux |
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Journal of Materials Research,
26(15):1872-1878
2011
Equipe: Département CP2S : Chimie et électrochimie des matériaux |