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References

2009

Articles:

Hutchinson, C.R., Loo, P.T., Bastow, T.J., Hill, A.J. and da Costa Teixeira, J.
Acta Materialia, 57(19):5645-5653
2009
ISSN: 1359-6454

Equipe: Département SI2M : Microstructures et Contraintes

da Costa Teixeira, J., Bourgeois, L., Sinclair, C.W. and Hutchinson, C.R.
Acta Materialia, 57(20):6075-6089
2009
ISSN: 1359-6454

Equipe: Département SI2M : Microstructures et Contraintes

2008

Articles:

Douce, J F., Bellot, J.P., Denis, S., Chaffotte, F., Pellegrino, G., Gouhinec, F., Lamesle, P. and Maury, J.
International Journal of Microstructure and Materials Properties, 3(1):150
2008
ISSN: 1741-8429

Equipe: Département SI2M : Microstructures et Contraintes

Bruneseaux, Fabien, Aeby-Gautier, Elisabeth, Geandier, Guillaume, Teixeira, Julien Da Costa, Appolaire, Benoit, Weisbecker, Patrick and Mauro, Anthony
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 476(1-2):60-68
2008
ISSN: 0921-5093

Resume: The beta(BCC) -> alpha(HCP) + beta(BCC) phase transformation kinetics of the beta-metastable titanium alloy Ti17 was studied by in situ high energy X-ray diffraction (XRD) and electrical resistivity. The use of synchrotron radiation (E = 89.12 keV, lambda = 0.01402 nm) allowed to characterize specimens 6 mm in diameter, limiting thus oxidation effects. The alpha + beta -> beta phase transformation kinetics was characterized during continuous heating up to the P temperature range. The beta -> alpha + beta transformation was studied in isothermal conditions (dwell at 708 degrees C or 750 degrees C) and during continuous cooling (cooling rates of 0.05 degrees C/s, 0.1 degrees C/s and 0.61 degrees C/s). The evolutions of the phase fractions are analyzed and compared to kinetics measured by electrical resistivity, showing a good correlation between both methods. In addition, the evolutions of the cell parameters of each phase obtained from XRD patterns are analyzed in regard of the transformation kinetics. (C) 2007 Elsevier B.V. All rights reserved.

Equipe: Département SI2M : Microstructures et Contraintes

2007

Articles:

Aeby-Gautier, E., Bruneseaux, F., Teixeira, J. Da Costa, Appolaire, B., Geandier, G. and Denis, S.
Journal of Materials, 59(1):54-58
2007
ISSN: 1047-4838

Resume: The prediction of microstructure during processing needs to characterize the phase transformation occurring during the thermal treatments and their kinetics. In-situ high-energy synchrotron x-ray diffraction experiments performed during temperature variations allow the characterization of the phase evolution. For some transformation conditions, the continuous recording of diffraction diagrams evidences clearly intermediate phases. The quantitative analysis of the diffraction diagrams gives the transformation kinetics of each phase as well as their cell parameters. Transformation kinetics obtained by this method are compared to results obtained by electrical resistivity.

Equipe: Département SI2M : Département SI2M : Microstructures et Contraintes

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