Publications

•  Shubham Sanjay Joshi, Williams Lefebvre, Yan Duval, Cendrine Folton, Eric Hug, et al.. Impact of laser powder bed fusion processing on the cyclic and fatigue properties of Ni20Cr alloy. Materials Science and Engineering: A, 2024, 890, pp.145915. ⟨10.1016/j.msea.2023.145915⟩. ⟨hal-04324993⟩

• Williams Lefebvre, Gérald da Costa, Celia Castro, François Vurpillot. Combining Structure, Chemistry and Properties at the Nanoscale with Correlative Tomography Approaches. Microscopy and Microanalysis, 2023, 29 (Supplement_1), pp.611-611. ⟨10.1093/micmic/ozad067.296⟩. ⟨hal-04324995⟩

•  Shubham Sanjay Joshi, Clément Keller, Lydie Mas, Williams Lefebvre, Eric Hug, et al.. On the origin of the strain hardening mechanisms of Ni20Cr alloy manufactured by laser powder bed fusion. International Journal of Plasticity, 2023, 165, pp.103610. ⟨10.1016/j.ijplas.2023.103610⟩.  ⟨hal-04324998⟩

•  Shubham Sanjay Joshi, Clément Keller, Eric Hug, Williams Lefebvre. Quantifying microstructural contribution to yield stress and strain hardening of Ni20Cr alloy manufactured by laser powder bed fusion with different volumetric energy densities. Journal of Alloys and Compounds, 2023, 968, pp.172241. ⟨10.1016/j.jallcom.2023.172241⟩.  ⟨hal-04324985⟩

•  Shubham Sanjay Joshi, Clément Keller, Williams Lefebvre, Eric Hug. High Temperature Tensile Properties and Microstructure of Ni20Cr Alloy Fabricated by Laser Powder Bed Fusion. Key Engineering Materials, 2023, 964, pp.97 - 102. ⟨10.4028/p-0wza3s⟩.  ⟨hal-04311476⟩

• Elie Paccou, Morgane Mokhtari, Clément Keller, Josiane Nguejio, Williams Lefebvre, et al.. Investigations of powder reusing on microstructure and mechanical properties of Inconel 718 obtained by additive manufacturing. Materials Science and Engineering: A, 2021, 828, pp.142113. ⟨10.1016/j.msea.2021.142113⟩.  ⟨hal-03467518⟩

• Williams Lefebvre, Grégory Rose, Pauline Delroisse, Eric Baustert, Fabien Cuvilly, et al.. Nanoscale periodic gradients generated by laser powder bed fusion of an AlSi10Mg alloy. Materials and Design, Elsevier, 2021, 197, pp.109264. ⟨10.1016/j.matdes.2020.109264⟩. ⟨hal-03260666⟩

• T.S. Orlova, T.A. Latynina, M.y. Murashkin, F. Chabanais, Lorenzo Rigutti, et al.. Effects of Mg on strengthening mechanisms in ultrafine-grained Al–Mg–Zr alloy. Journal of Alloys and Compounds, Elsevier, 2021, 859, pp.157775. ⟨10.1016/j.jallcom.2020.157775⟩. ⟨hal-03260637⟩

• Lorenzo Rigutti, Enrico Di Russo, Florian Chabanais, Ivan Blum, Jonathan Houard, et al.. Surface Microscopy of Atomic and Molecular Hydrogen from Field-Evaporating Semiconductors. Journal of Physical Chemistry C, American Chemical Society, 2021, 125 (31), pp.17078-17087. ⟨10.1021/acs.jpcc.1c04778⟩. ⟨hal-03448318⟩

• Williams Lefebvre, Elie Paccou, Morgane Mokhtari, Clément Keller, Josiane Nguejio, et al.. Investigations of powder reusing on microstructure and mechanical properties of Inconel 718 obtained by additive manufacturing. Materials Science and Engineering: A, Elsevier, 2021, 828, pp.142113. ⟨10.1016/j.msea.2021.142113⟩. ⟨hal-03467518⟩

• Williams Lefebvre, N.V. Skiba, F. Chabanais, M.yu. Gutkin, Lorenzo Rigutti, et al.. Vacancy release upon heating of an ultrafine grain Al-Zr alloy: In-situ observations and theoretical modeling. Journal of Alloys and Compounds, Elsevier, 2021, 862, pp.158455. ⟨10.1016/j.jallcom.2020.158455⟩. ⟨hal-03260629⟩

• Williams Lefebvre, Florian Chabanais, Enrico Di Russo, Alexander Karg, Martin Eickhoff, et al.. Behavior of the ε-Ga 2 O 3 :Sn Evaporation During Laser-Assisted Atom Probe Tomography. Microscopy and Microanalysis, Cambridge University Press (CUP), 2021, 27 (4), pp.687-695. ⟨10.1017/S1431927621000544⟩. ⟨hal-03467531⟩

• Leifeng Zhang, Lindor Diallo, Abdeslem Fnidiki, Luc Lechevallier, Alain Declemy, et al.. Probing the origins of magnetism in 2 at% Fe-implanted 4H-SiC. Scripta Materialia, Elsevier, 2020, 188, pp.157-163. ⟨10.1016/j.scriptamat.2020.07.030⟩. ⟨hal-02922644⟩

• François Saint-Antonin, Williams Lefebvre, Ivan Blum. Niobium Base Superalloys: Achievement of a Coherent Ordered Precipitate Structure in the Nb Solid-Solution. Crystals, MDPI, 2019, 9 (7), pp.345. ⟨10.3390/cryst9070345⟩. ⟨hal-03260704⟩

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  yu Ma, Ahmed Addad, G Ji, Ming-Xing Zhang, Williams Lefebvre, et al.. Atomic-scale investigation of the interface precipitation in a TiB 2 nanoparticles reinforced Al–Zn–Mg–Cu matrix composite. Acta Materialia, Elsevier, 2019, Acta Materialia, 185, pp.287 - 299. ⟨10.1016/j.actamat.2019.11.068⟩. ⟨hal-03019087⟩

• Lorenzo Rigutti, François Vurpillot, Williams Lefebvre, Angela Vella. La sonde atomique tomographique. Reflets de la Physique, EDP sciences, 2019, pp.4-10. ⟨10.1051/refdp/201962004⟩. ⟨hal-03260708⟩

• E. Di Russo, F. Moyon, N. Gogneau, L. Largeau, E. Giraud, et al.. Composition Metrology of Ternary Semiconductor Alloys Analyzed by Atom Probe Tomography. Journal of Physical Chemistry C, American Chemical Society, 2018, 122 (29), pp.16704--16714. ⟨10.1021/acs.jpcc.8b03223⟩. ⟨hal-01928844⟩

• G. Meyruey, V. Massardier, W. Lefebvre, M. Perez. Over-ageing of an Al-Mg-Si alloy with silicon excess. Materials Science and Engineering: A, Elsevier, 2018, 730, pp.92-105. ⟨10.1016/j.msea.2018.05.094⟩. ⟨hal-01916317⟩

• L. Mancini, F. Moyon, J. Houard, I. Blum, W. Lefebvre, et al.. Multi-excitonic emission from Stranski-Krastanov GaN/AlN quantum dots inside a nanoscale tip. Applied Physics Letters, American Institute of Physics, 2017, 111 (24), ⟨10.1063/1.5004417⟩. ⟨hal-01766091⟩

• E. Di Russo, L. Mancini, F. Moyon, S. Moldovan, J. Houard, et al.. Three-dimensional atomic-scale investigation of ZnO-Mg x Zn 1−x O m-plane heterostructures. Applied Physics Letters, American Institute of Physics, 2017, 111 (3), pp.032108. ⟨10.1063/1.4994659⟩. ⟨hal-01766135⟩

• F. Moyon, Daniel Hernandez Maldonado, M.D. Robertson, A. Etienne, Célia Castro, et al.. Reverse Monte Carlo Reconstruction Algorithm for Discrete Electron Tomography Based on HAADF-STEM Atom Counting. Journal of Microscopy, Wiley, 2017, 265 (1), pp.73-80. ⟨10.1111/jmi.12464⟩. ⟨hal-01954197⟩

• Lorenzo Mancini, Florian Moyon, David Hernàndez-Maldonado, Ivan Blum, Jonathan Houard, et al.. Carrier Localization in GaN/AlN Quantum Dots As Revealed by Three-Dimensional Multimicroscopy. Nano Letters, American Chemical Society, 2017, 17 (7), pp.4261 - 4269. ⟨10.1021/acs.nanolett.7b01189⟩. ⟨hal-01765951⟩

• Williams Lefebvre, Alfiia Akhatova, Lorenzo Mancini, Auriane Etienne, Bertrand Radiguet, et al.. Revealing the atomic structure of two dimensional and three dimensional defects by aberration corrected Scanning Transmission Electron Microscopy. JEOL NEWS Magazine , JEOL 2017. ⟨hal-02112299⟩

• Eva Gumbmann, Williams Lefebvre, Frédéric de Geuser, Christophe Sigli, Alexis Deschamps. The effect of minor solute additions on the precipitation path of an AlCuLi alloy. Acta Materialia, Elsevier, 2016, 115, pp.104-114. ⟨10.1016/j.actamat.2016.05.050⟩. ⟨hal-01367843⟩

• Lydia Katsarou, Maher Mounib, Williams Lefebvre, Sergey Vorozhtsov, Matteo Pavese, et al.. Microstructure, Mechanical Properties and Creep of Magnesium Alloy Elektron21 Reinforced with AlN Nanoparticles by Ultrasound-Assisted Stirring. Materials Science and Engineering: A, Elsevier, 2016, 659, pp.84-92. ⟨10.1016/j.msea.2016.02.042⟩. ⟨hal-01954250⟩

• M.yu. Murashkin, I. Sabirov, A.E. Medvedev, N.A. Enikeev, W. Lefebvre, et al.. Mechanical and Electrical Properties of an Ultrafine Grained Al\textendash8.5 Wt. % RE (RE = 5.4 Wt.% Ce, 3.1 Wt.% La) Alloy Processed by Severe Plastic Deformation. Materials and Design, Elsevier, 2016, 90, pp.433-442. ⟨10.1016/j.matdes.2015.10.163⟩. ⟨hal-01954255⟩

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  E Gumbmann, F de Geuser, A Deschamps, W Lefebvre, F Robaut, et al.. A combinatorial approach for studying the effect of Mg concentration on precipitation in an Al–Cu–Li alloy. Scripta Materialia, Elsevier, 2016, ⟨10.1016/j.scriptamat.2015.07.042⟩. ⟨hal-01265702⟩

• F. Vurpillot, W. Lefebvre, J.M. Cairney, C. Oberdorfer, B.P. Geiser, et al.. Advanced Volume Reconstruction and Data Mining Methods in Atom Probe Tomography. MRS Bulletin, Cambridge University Press (CUP), 2016, 41 (01), pp.46-52. ⟨10.1557/mrs.2015.312⟩. ⟨hal-01954244⟩

• L. Rigutti, L. Mancini, E. Di Russo, I. Blum, F. Moyon, et al.. Assessing the Composition of Wide Bandgap Compound Semiconductors by Atom Probe Tomography: A Metrological Problem. Microscopy and Microanalysis, Cambridge University Press (CUP), 2016, 22 (S3), pp.650-651. ⟨10.1017/S1431927616004104⟩. ⟨hal-01954232⟩

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  Mathilde Guérin, Joël Alexis, Eric Andrieu, Lydia Laffont-Dantras, Williams Lefebvre, et al.. Identification of the metallurgical parameters explaining the corrosion susceptibility in a 2050 aluminium alloy. Corrosion Science, Elsevier, 2016, 102, pp.291-300. ⟨10.1016/j.corsci.2015.10.020⟩. ⟨hal-01264384⟩

• L. Rigutti, L. Mancini, Daniel Hernandez Maldonado, W. Lefebvre, E. Giraud, et al.. Statistical correction of atom probe tomography data of semiconductor alloys combined with optical spectroscopy: The case of Al0.25Ga0.75N. Journal of Applied Physics, American Institute of Physics, 2016, 119 (10), pp.105704. ⟨10.1063/1.4943612⟩. ⟨hal-01928851⟩

• L. Mancini, Daniel Hernandez Maldonado, W. Lefebvre, J. Houard, I. Blum, et al.. Multi-Microscopy Study of the Influence of Stacking Faults and Three-Dimensional In Distribution on the Optical Properties of m-Plane InGaN Quantum Wells Grown on Microwire Sidewalls. Applied Physics Letters, American Institute of Physics, 2016, 108 (4), pp.042102. ⟨10.1063/1.4940748⟩. ⟨hal-01954240⟩

• L. Piccolo, Z. y. Li, Ilker Demiroglu, Florian Moyon, Z. Konuspayeva, et al.. Understanding and controlling the structure and segregation behaviour of AuRh nanocatalysts. Scientific Reports, Nature Publishing Group, 2016, 6, pp.35226. ⟨10.1038/srep35226⟩. ⟨hal-01399198⟩

• Takeshi Saito, Flemming J.H. Ehlers, Williams Lefebvre, David Hernandez-Maldonado, Ruben Bjørge, et al.. Cu Atoms Suppress Misfit Dislocations at the B''/Al Interface in Al\textendashMg\textendashSi Alloys. Scripta Materialia, Elsevier, 2016, 110, pp.6-9. ⟨10.1016/j.scriptamat.2015.07.033⟩. ⟨hal-01954230⟩

• L. Rigutti, L. Mancini, W. Lefebvre, J. Houard, Daniel Hernandez Maldonado, et al.. Statistical nanoscale study of localised radiative transitions in GaN/AlGaN quantum wells and AlGaN epitaxial layers. Semiconductor Science and Technology, IOP Publishing, 2016, 31 (9), pp.095009. ⟨10.1088/0268-1242/31/9/095009⟩. ⟨hal-01928848⟩

• Thomas Dorin, Patricia Donnadieu, Jean-Marc Chaix, Williams Lefebvre, Frédéric De Geuser, et al.. Size distribution and volume fraction of T1 phase precipitates from TEM images: Direct measurements and related correction. Micron, Elsevier, 2015, 78, pp.19-27. ⟨10.1016/j.micron.2015.06.002⟩. ⟨hal-01264142⟩

• W. Lefebvre, Daniel Hernandez Maldonado, F. Moyon, F. Cuvilly, C. Vaudolon, et al.. HAADF–STEM atom counting in atom probe tomography specimens: Towards quantitative correlative microscopy. Ultramicroscopy, Elsevier, 2015, 159, pp.403-412. ⟨10.1016/j.ultramic.2015.02.011⟩. ⟨hal-02107619⟩

• T. Dorin, A. Deschamps, F. de Geuser, W. Lefebvre, C. Sigli. Quantitative description of the T-1 formation kinetics in an Al-Cu-Li alloy using differential scanning calorimetry, small-angle X-ray scattering and transmission electron microscopy. Philosophical Magazine, Taylor & Francis, 2014, 94 (10), pp.1012-1030. ⟨10.1080/14786435.2013.878047⟩. ⟨hal-01053233⟩

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  Lorenzo Mancini, Nooshin Amirifar, Deodatta Shinde, Ivan Blum, Matthieu Gilbert, et al.. Composition of Wide Bandgap Semiconductor Materials and Nanostructures Measured by Atom Probe Tomography and Its Dependence on the Surface Electric Field. Journal of Physical Chemistry C, American Chemical Society, 2014, 118 (41), pp.24136-24151. ⟨10.1021/jp5071264⟩. ⟨hal-01163403⟩

• W. Lefebvre, N. Masquelier, J. Houard, Renaud Patte, H. Zapolsky. Tracking the path of dislocations across ordered Al3Zr nano-precipitates in three dimensions. Scripta Materialia, Elsevier, 2014, 70, pp.43-46. ⟨10.1016/j.scriptamat.2013.09.014⟩. ⟨hal-02109343⟩

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  Maher Mounib, Matteo Pavese, Claudio Badini, Williams Lefebvre, Hajo Dieringa. Reactivity and Microstructure of Al2O3-Reinforced Magnesium-Matrix Composites. Advances in Materials Science and Engineering, Hindawi Publishing Corporation, 2014, 2014, pp.476079. ⟨10.1155/2014/476079⟩. ⟨hal-02354626⟩

• T. Dorin, F. de Geuser, W. Lefebvre, C. Sigli, A. Deschamps. Strengthening mechanisms of T-1 precipitates and their influence on the plasticity of an Al-Cu-Li alloy.. Materials Science and Engineering: A, Elsevier, 2014, 605, pp.119-126. ⟨10.1016/j.msea.2014.03.024⟩. ⟨hal-01073083⟩

• Lorenzo Rigutti, Ivan Blum, Deodatta Shinde, David Hernandez-Maldonado, Williams Lefebvre, et al.. Correlation of Microphotoluminescence Spectroscopy, Scanning Transmission Electron Microscopy, and Atom Probe Tomography on a Single Nano-object Containing an InGaN/GaN Multiquantum Well System. Nano Letters, American Chemical Society, 2014, 14 (1), pp.107-114. ⟨10.1021/nl4034768⟩. ⟨hal-01986734⟩

• A. Deschamps, C. Sigli, T. Mourey, F. De geuser, W. Lefebvre, et al.. Experimental and modelling assessment of precipitation kinetics in an Al-Li-Mg alloy. Acta Materialia, Elsevier, 2012, 60 (5), pp.1917-1928. ⟨10.1016/j.actamat.2012.01.010⟩. ⟨hal-00728089⟩

• W. Lefebvre, V. Kopp, Cristelle Pareige. Nano-precipitates made of atomic pillars revealed by single atom detection in a Mg-Nd alloy. Applied Physics Letters, American Institute of Physics, 2012, 100 (14), pp.141906. ⟨10.1063/1.3701272⟩. ⟨hal-02107335⟩

• F. de Geuser, W. Lefebvre. Determination of Matrix Composition Based on Solute-Solute Nearest-Neighbor Distances in Atom Probe Tomography. Microscopy Research and Technique, Wiley, 2011, 74 (3), pp.257-263. ⟨10.1002/jemt.20899⟩. ⟨hal-00633947⟩

• V. Kopp, W. Lefebvre, Cristelle Pareige. Determination of the Mg-Rich Phase Boundary of the Binary Mg-Nd Phase Diagram by Means of Atom Probe Tomography. Journal of Phase Equilibria and Diffusion, Springer Verlag, 2011, 32 (4), pp.298-301. ⟨10.1007/s11669-011-9882-1⟩. ⟨hal-02107366⟩

• T. Marlaud, A. Deschamps, F. Bley, W. Lefebvre, B. Baroux. Evolution of precipitate microstructures during the retrogression and re-ageing heat treatment of an Al-Zn-Mg-Cu alloy. Acta Materialia, Elsevier, 2010, 58 (14), pp.4814-4826. ⟨10.1016/j.actamat.2010.05.017⟩. ⟨hal-00517197⟩

• Irina Semenova, Gulnaz Salimgareeva, Gérald da Costa, Williams Lefebvre, Ruslan Valiev. Enhanced Strength and Ductility of Ultrafine-Grained Ti Processed by Severe Plastic Deformation. Advanced Engineering Materials, Wiley-VCH Verlag, 2010, 12 (8), pp.803-807. ⟨10.1002/adem.201000059⟩. ⟨hal-02108169⟩

• T. Marlaud, A. Deschamps, F. Bley, W. Lefebvre, B. Baroux. Influence of alloy composition and heat treatment on precipitate composition in Al-Zn-Mg-Cu alloys. Acta Materialia, Elsevier, 2010, 58 (1), pp.248-260. ⟨10.1016/j.actamat.2009.09.003⟩. ⟨hal-00456224⟩

• T. Philippe, F. de Geuser, S. Duguay, W. Lefebvre, O. Cojocaru-Mirédin, et al.. Clustering and nearest neighbour distances in atom-probe tomography. Ultramicroscopy, Elsevier, 2009, 109, pp.1304-1309. ⟨10.1016/j.ultramic.2009.06.007⟩. ⟨hal-00457542⟩

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  Xavier Sauvage, Williams Lefebvre, Cécile Genevois, S. Ohsaki, Kazuhiro Hono. Complementary use of TEM and APT for the investigation of steels nanostructured by severe plastic deformation. Scripta Materialia, Elsevier, 2009, 60, pp.1056-1061. ⟨10.1016/j.scriptamat.2009.02.019⟩. ⟨hal-00375381⟩

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  F. de Geuser, W. Lefebvre, F. Danoix, F. Vurpillot, B. Forbord, et al.. An improved reconstruction procedure for the correction of local magnification effects in three-dimensional atom-probe. Surface and Interface Analysis, Wiley-Blackwell, 2007, 39 (2-3), pp.268--272. ⟨10.1002/sia.2489⟩. ⟨hal-00408094⟩

• W. Lefebvre, F. Danoix, G. da Costa, Frédéric de Geuser, H. Hallem, et al.. 3DAP measurements of Al content in different types of precipitates in aluminium alloys. Surface and Interface Analysis, Wiley-Blackwell, 2007, 39 (2-3), pp.206-212. ⟨10.1002/sia.2516⟩. ⟨hal-02320474⟩

• T. Gloriant, F. Danoix, W. Lefebvre, A.L. Greer. Nanocrystallized Al92Sm8 amorphous alloy investigated by high-resolution microscopy and 3D atom-probe analysis. Adv. Eng. Mater, 2007, 9-3, pp.151-155. ⟨hal-00496138⟩

• E. Clouet, L. Lae, T. Epicier, W. Lefebvre, M. Nastar, et al.. Complex precipitation pathways in multicomponent alloys. Nature Materials, Nature Publishing Group, 2006, 5 (6), pp.482-488. ⟨hal-00139911⟩

• F. de Geuser, W. Lefebvre, P. Auger, F. Danoix, A. Bigot, et al.. Atom probe tomography II. The precipitation in Al base alloys. ADVANCED ENGINEERING MATERIALS, 2006, 8 (12), pp.1206--1209. ⟨10.1002/adem.200600180⟩. ⟨hal-01928900⟩

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  F. de Geuser, W. Lefebvre, D. Blavette. 3D atom probe study of solute atoms clustering during natural ageing and pre-ageing of an Al-Mg-Si alloy. Philosophical Magazine Letters, Taylor & Francis, 2006, 86 (4), pp.227--234. ⟨10.1080/09500830600643270⟩. ⟨hal-00408093⟩

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  Emmanuel Clouet, Ludovic Laé, Thierry Épicier, Williams Lefebvre, Maylise Nastar, et al.. Complex Precipitation Pathways in Multi-Component Alloys. Nature Materials, Nature Publishing Group, 2006, 5, pp.482-488. ⟨10.1038/Nmat1652⟩. ⟨hal-00077357⟩

• Myriam Dumont, W. Lefebvre, B. Doisneau-Cottignies, A. Deschamps. Characterisation of the composition and volume fraction of η′ and η precipitates in an Al–Zn–Mg alloy by a combination of atom probe, small-angle X-ray scattering and transmission electron microscopy. Acta Materialia, Elsevier, 2005, 53 (10), pp.2881 - 2892. ⟨10.1016/j.actamat.2005.03.004⟩. ⟨hal-01774069⟩

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  Borge Forbord, Williams Lefebvre, Frederic Danoix, Hakon Hallem, Knut Marthinsen. Three Dimensional Atom Probe investigation on the formation of Al3(Sc,Zr)-dispersoids in aluminium alloys. Scripta Metallurgica, Elsevier, 2004, 51, pp.333-337. ⟨10.1016/j.scriptamat.2004.03.033⟩. ⟨hal-00003787⟩

• Williams Lefebvre, A. Menand, A. Loiseau, D. Blavette. Atom probe study of phase transformations in a Ti-48 at.% Al alloy. Materials Science and Engineering: A, Elsevier, 2002, 327 (1), pp.40--46. ⟨10.1016/S0921-5093(01)01890-1⟩. ⟨hal-01928915⟩

Enseignements

Responsable de la dernière année du parcours Physique pour la santé de l’école d’ingénieur ESITech

Interventions dans les formations matériaux (Licence et master) de l’université de Rouen Normandie.

Cours de métallurgie, spécialisation dans les alliages de structure légers

• Introduction aux métaux et alliages (bac + 3) : les métaux dans le tableau périodique, la liaison métallique, classes de propriétés, structures cristallines, défauts, mélanges et diagrammes de phases binaires, introduction au comportement mécanique des métaux et alliages.

• Métallurgie physique (bac+3, bac + 4) : Thermodynamique des diagrammes de phase, solidification, diffusion, transformations de phase à l’état solide, description des défauts cristallins. Plasticité. Caractérisation des propriétés mécaniques (dureté, fluage, traction). Durcissement par solution solide, par écrouissage ou par précipitation, évolution des propriétés mécaniques avec l’exposition en température (adoucissement, recristallisation).

• Matériaux métalliques industriels (bac + 4) : Notions importantes de métallurgie extractive, de recyclage et d’analyse du cycle de vie. Les grandes classes d’alliages, leurs désignations, leurs propriétés et domaines d’applications. Mise en relation des propriétés avec la microstructure.

• Matériaux pour les transports (bac+5) : Métallurgie des alliages d’aluminium, de titane et de fer pour applications dans les secteurs automobile et aéronautique.

Techniques de microscopie – tomographie – diffraction (bac + 3 à bac + 5)

• Principes de l’interaction entre une onde électromagnétique (RX) ou un faisceau corpusculaire et la matière condensée. Diffusion et diffraction des rayonnements, facteurs de diffusion atomique, facteurs de structure.
• Principales techniques de diffraction des rayons X. Application aux métaux et alliages (détection de phases, mesure de contraintes, taille de domaines diffractant, texture)
• Diffusion des RX aux petits angles. Application aux alliages (rayon de Guinier, fraction volumique de phase précipitée, composition des précipités, dynamique de précipitation in situ)
• Microscopie électronique à balayage et techniques associées (EDS, EBSD).
• Microscopie électronique en transmission (conventionnelle, haute résolution, STEM) et techniques associées. Applications aux alliages (structures, défauts…)
• Techniques de tomographie (RX et électronique : principes physiques, procédés de reconstruction).