This file was created by the TYPO3 extension bib --- Timezone: CET Creation date: 2021-03-02 Creation time: 16-06-46 --- Number of references 17 article Esin:2014 Acta Materialia 2014 80 118--131 Département SI2M : Microstructures et Contraintes http://dx.doi.org/10.1016/j.actamat.2014.07.042 Elsevier BV 1359-6454 10.1016/j.actamat.2014.07.042 V.A.Esin B.Denand Q.Le Bihan M.Dehmas J.Teixeira G.Geandier S.Denis T.Sourmail E.Aeby-Gautier article Chambrier:2013 Inorganic Chemistry 2014 53 (1) 147-159 Département SI2M : Microstructures et Contraintes dx.doi.org/10.1021/ic401801u M-HChambrier A.Le Bail F.Giovanelli ARedjaïmia P.Florian D.Massiot E.Suard F.Goutenoire article Badinier:2014 Materials Science & Engineering A 2014 597 10-19 Département SI2M : Microstructures et Contraintes http://dx.doi.org/10.1016/j.msea.2013.12.03 G.Badinier C.W.Sinclair S.Allain O.Bouaziz article Pushkareva:2013 ISIJ International 2013 53 1215-1223 Département SI2M : Microstructures et Contraintes 10.2355/isijinternational.53.1215 I.Pushkareva C.Scott M.Goune N.Valle A.Redjaïmia AMoulin article Salib:2013 Acta Materialia 2013 61 3758-3768 Département SI2M : Microstructures et Contraintes 10.1016/j.actamat.2013.03.007 M.Salib J.Teixeira L.Germain E.Lamielle N.Gey E.Aeby-Gautier article Dehmas:2013 Metallurgical and Materials Transactions A 2013 44 (2) 1059-1073 Département SI2M : Microstructures et Contraintes 10.1007/s11661-012-1473-1 M.Dehmas E.Aeby-Gautier P.Archambault M.Serrière article Aeby-Gautier:2013 Journal of Alloys and Compounds 2013 5775 439-443 Département SI2M : Microstructures et Contraintes 10.1016/j.jallcom.2012.02.046 E.Aeby-Gautier A.Settefrati F.Bruneseaux B.Appolaire B.Denand M.Dehmas G.Geandier P.Boulet article Settefrati:2013 Materials Science Forum 2013 738-739 97-102 proceedings Conférence ESOMAT 2012 Département SI2M : Microstructures et Contraintes doi:10.4028/www.scientific.net/MSF.738-739.97 A.Settefrati E.Aeby-Gautier B.Appolaire M.Dehmas G.Geandier G.Khelifat article Brunetti:2012 Micron 2012 43 2-3 396-406 In single-crystal nickel-based superalloys, the lattice mismatch associated with interface coherency between gamma matrix and gamma' precipitates has a strong influence on mechanical properties. The unconstrained lattice misfit in a single-crystal of the MC2 nickel-based superalloy is determined using convergent beam electron diffraction measurements and finite element calculations. The apparent lattice parameters of both constrained phases are obtained in thin foils, using a new multi-pattern approach, which allows for unambiguous determination of all the lattice parameters considering the real symmetry of the strained crystals. Finite element calculations are used to establish relations between the constrained and unconstrained lattice parameters, with the stress relaxation resulting from the thin foil geometry taken into account. (C) 2011 Elsevier Ltd. All rights reserved. Département SI2M : Microstructures et Contraintes 0968-4328 10.1016/j.micron.2011.10.009 G.Brunetti A.Settefrati A.Hazotte S.Denis J. -J.Fundenberger A.Tidu E.Bouzy article Horwat2012 Chemistry of materials 2012 24 (3) 2429-2432 Département SI2M : Microstructures et Contraintes 10.1021/cm301179x D.Horwat M.Dehmas A.GUTIERREZ J.F.Pierson A.Anders F.SOLDERA J.L.Endrino article Dehmas2012 Matériaux et techniques 2012 100 103-105 Département SI2M : Microstructures et Contraintes www.mattech-journal.org Edp sciences MoukraneDehmas MatthieuSalib GuillaumeGeandier ElisabethGautier NikhilKarnatak OlivierMartin article Geandier2012 Comptes Rendus Physique 2012 13 3 257-267 High energy X-ray diffraction is a powerful tool, able to follow phase transformations during complex thermal or thermo-mechanical treatments. High energy allows one to study volumic specimens of a few mm(3) and get successive data within a few seconds or less. The technique is described with different experimental setups (heating devices, detectors for diverse acquisition times) allowing diverse ranges for heating and cooling rates. Three examples are considered to illustrate the results obtained by using high energy X-ray diffraction. The first one corresponds to a simple diffusive phase transformation during an isothermal thermal path for the alpha-beta transformation in a titanium alloy, highlighting the diffusive character considering the cell parameter evolutions of the parent phase. The second one illustrates the precipitation sequences observed during ageing of a beta-metastable phase in a titanium alloy that was not obtained by TEM. The last example illustrates the phase evolutions during ageing of a martensitic steel showing the complexity of cell parameters evolution and some evolutions of the stress state. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. Département SI2M : Microstructures et Contraintes 1631-0705 10.1016/j.crhy.2011.12.001 G.Geandier E.Aeby-Gautier A.Settefrati M.Dehmas B.Appolaire article Settefrati:2011 Solid State Phenomena 2011 172-174 Part 1 760-765 In the present study we focus on the precipitation processes during heating and ageing of beta-metastable phase in the near beta Ti-5553 alloy. Transformation processes have been studied using continuous high energy X-Ray Diffraction (XRD) and electrical resistivity for two different states of the beta-metastable phase. Microstructures have been observed by electron microscopy. Different transformation sequences are highlighted depending on both heating rate and chemical composition of the beta-metastable phase. At low temperatures and low heating rates, the hexagonal omega(iso) phase is first formed as generally mentioned in the literature. Increasing the temperature, XRD evidences the formation of an orthorhombic phase (alpha"), which evolves toward the hexagonal pseudo compact alpha phase. For higher heating rates or for richer composition in beta-stabilizing elements of the beta-metastable phase, omega phase may not form and alpha" forms directly and again transforms into alpha phase. A direct transformation from beta-metastable to alpha phase is observed for the highest heating rate. The formation of the metastable omega(iso) and alpha" phases clearly influences the final morphology of alpha. Département SI2M : Microstructures et Contraintes Brechet, Y and Clouet, E and Deschamps, A and Finel, A and Soisson, F SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 Mat & Process Sci & Engn Lab; CEA, Tranverse Programme Adv Mat; French Aerospace Lab; Inst Chem, Natl Ctr Sci Res; French Phase Field Network; Lab Etude Microstructures 1012-0394 10.4028/www.scientific.net/SSP.172-174.760 A.Settefrati E.Aeby-Gautier M.Dehmas G.Geandier B.Appolaire S.Audion J.Delfosse article Lach:2012 International Journal of Microstructure and Materials Properties, 2010 5 (1) 65-78 Département SI2M : Microstructures et Contraintes E.Lach R.Schnitzer H.Letiner A.Redjaïmia H.Clemans article Combeau:2010 Nuclear Engineering and Design 2010 240 1975-1985 Département SI2M : Microstructures et Contraintes H.Combeau B.Appolaire J.M.Seiler article CostaTeixeira:2009 Acta Materialia 2009 57 20 6075-6089 Département SI2M : Microstructures et Contraintes http://dx.doi.org/10.1016/j.actamat.2009.08.034 Elsevier BV 1359-6454 10.1016/j.actamat.2009.08.034 J.da Costa Teixeira L.Bourgeois C.W.Sinclair C.R.Hutchinson article Teixeira:2007 MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 2007 448 1-2 135-145 We have investigated the microstructure evolutions in the Ti17 near beta titanium alloy during heat treatments. The phase transformation has first been studied experimentally by combining X-ray diffraction analysis, electrical resistivity and microscopy observations. From a series of isothermal treatments. a IT diauram has been determined, which takes into account the different morphologies. Then, a Johnson-Mehl-Avrami-Kolmogorov (JMAK) model has been successfully used to describe the phase transformation kinetics during either isothermal or cooling treatments. Finally, the coupling of the JMAK model to the finite element software ZeBuLoN allowed us to investigate the evolution of the spatial distribution of the different morphologies during the cooling of an aircraft engine shaft disk after forging. (c) 2006 Elsevier B.V. All rights reserved. Département SI2M : Microstructures et Contraintes 0921-5093 10.1016/j.msea.2006.10.024 Julien Da CostaTeixeira BenoitAppolaire ElisabethAeby-Gautier SabineDenis GeorgesCailletaud NadineSpath