Roland Logé
Associate Professor
roland.loge@epfl.ch 41 21 695 42 69
EPFL STI IMX LMTM
MC A1 258 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
CH-2002 Neuchâtel 2
41 21 695 42 69
41 21 695 44 26
Office: MC A1 258
Office: MXG 310
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41 21 695 42 69
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EPFL STI SMX-GE
MXG 310 (Bâtiment MXG)
Station 12
CH-1015 Lausanne
41 21 695 42 69
41 21 693 68 01
Office: MXG 310
EPFL
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STI-SMX
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Web site: Web site: https://dms.epfl.ch/DOCS/E/CDS
Fields of expertise
Microstructure design in metals and alloys
Thermo-mechanical treatments
Multiscale modelling
Selective Laser Melting
Thermo-mechanical treatments
Multiscale modelling
Selective Laser Melting
Biography
Roland Logé is an associate professor at EPFL, with a primary affiliation to the Materials Institute, and a secondary affiliation to the Microengineering Institute.After graduating in 1994 at UCL (Belgium) in Materials Engineering, he earned a Master of Science in Mechanics in 1995, at UCSB Santa Barbara (USA). He received his PhD at Mines Paristech-CEMEF (France) in 1999, where he specialized in metal forming and associated microstructure evolutions. After a postdoc at Cornell University (USA) between 1999 and 2001, he entered CNRS in France.
In 2008, he was awarded the ALCAN prize from the French Academy of Sciences, together with Yvan Chastel.
In 2009 he became head of the Metallurgy-Structure-Rheology research group at CEMEF.
In 2011, he launched a “Groupement de Recherche” (GDR), funded by CNRS, networking most of the researchers in France involved in recrystallization and grain growth.
In 2013, he became Research Director at CNRS.
In March 2014 he joined EPFL as the head of the Laboratory of Thermomechanical Metallurgy.
Current work
Roland Logé is active in the field of processing of metals and alloys in the solid state, focusing on the ability to tailor the microstructures, and the associated material properties. Thermal and mechanical paths are simulated experimentally and numerically, together with the induced microstructure changes.While most of the activities were so far related to recrystallization, grain growth, textures and grain boundary engineering, extensions of the microstructure design approach progressively include precipitation, phase transformation, and grain refinement phenomena, with applications to bulk forming as well as powder metallurgy and additive manufacturing.
Publications
Infoscience publications
Publications
2020
Effect of Ag Addition on the Hot Deformation, Constitutive Equations and Processing Maps of a Hot Extruded Mg-Gd-Y Alloy
Metallurgical And Materials Transactions A-Physical Metallurgy And Materials Science. 2020-08-13. DOI : 10.1007/s11661-020-05937-4.The thermally activated distortion with amplification effect and related variant selection in red gold alloys
Acta Materialia. 2020-08-01. DOI : 10.1016/j.actamat.2020.07.064.Enhanced strength and toughness of bulk ultrafine grained Cu by nacre-inspired lamellar structure
Journal Of Alloys And Compounds. 2020-06-15. DOI : 10.1016/j.jallcom.2020.154234.An effective rule for translating optimal selective laser melting processing parameters from one material to another
Additive Manufacturing. 2020-08-05. DOI : 10.1016/j.addma.2020.101496.Annealing hardening and softening of an ultrafine grained Cu-4.5vol.% Al2O3 nanocomposite
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2020-03-19. DOI : 10.1016/j.msea.2020.139126.Laser coating of a Zr-based metallic glass on an aluminum substrate
Surface and Coatings Technology. 2020-07-23. DOI : 10.1016/j.surfcoat.2020.126223.Characterization, mechanical properties and dimensional accuracy of a Zr-based bulk metallic glass manufactured via laser powder-bed fusion
Materials & Design. 2020-12-10. DOI : 10.1016/j.matdes.2020.109400.van der Waals Epitaxy of Earth-Abundant Zn3P2 on Graphene for Photovoltaics
Crystal Growth & Design. 2020-04-22. DOI : 10.1021/acs.cgd.0c00125.2019
Laser shock peening: A promising tool for tailoring metallic microstructures in selective laser melting
Journal Of Materials Processing Technology. 2019-04-01. DOI : 10.1016/j.jmatprotec.2018.11.024.Effect of cooling conditions on microstructures and mechanical behaviors of reheated low-carbon weld metals
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2019-01-28. DOI : 10.1016/j.msea.2018.12.035.Dynamic recrystallization study of a Fe-Mn-Si based shape memory alloy in constant and variable thermomechanical conditions
Materials Characterization. 2019-06-01. DOI : 10.1016/j.matchar.2019.04.016.3D laser shock peening as a way to improve geometrical accuracy in selective laser melting
International Journal Of Advanced Manufacturing Technology. 2019-04-01. DOI : 10.1007/s00170-018-3033-3.On the chevron morphology of surface martensite
Acta Materialia. 2019-08-23. DOI : 10.1016/j.actamat.2019.08.021.Microstructure and Mechanical Properties of a Multiphase FeCrCuMnNi High-Entropy Alloy
Journal Of Materials Engineering And Performance. 2019-04-01. DOI : 10.1007/s11665-019-04003-4.Evaluation of the mechanical properties of the heat treated FeCrCuMnNi high entropy alloy
Materials Chemistry and Physics. 2019. DOI : 10.1016/j.matchemphys.2018.09.033.Variant selection in martensitic steels
Lausanne, EPFL, 2019. DOI : 10.5075/epfl-thesis-9635.Electron backscatter diffraction study of variant selection during ordering phase transformation in L1(0)-type red gold alloy
Journal Of Applied Crystallography. 2019-10-01. DOI : 10.1107/S1600576719011890.Healing cracks in selective laser melting by 3D laser shock peening
Additive Manufacturing. 2019-12-01. DOI : 10.1016/j.addma.2019.100881.Surface tension and viscosity of liquid Pd43Cu27Ni10P20 measured in a levitation device under microgravity
npj Microgravity. 2019-02-25. DOI : 10.1038/s41526-019-0065-4.2018
Evidence of new twinning modes in magnesium questioning the shear paradigm
JOURNAL OF APPLIED CRYSTALLOGRAPHY. 2018. DOI : 10.1107/S1600576718005678.Intricate morphologies of laths and blocks in low-carbon martensitic steels
MATERIALS AND DESIGN. 2018. DOI : 10.1016/j.matdes.2018.05.033.Mechanical behavior and texture development of over-aged and solution treated Al-Cu-Mg alloy during multi-directional forging
MATERIALS CHARACTERIZATION. 2018. DOI : 10.1016/j.matchar.2017.11.048.Microstructure and flow stress evolution during hot deformation of 304L austenitic stainless steel in variable thermomechanical conditions
Materials Science and Engineering: A. 2018. DOI : 10.1016/j.msea.2017.11.042.Microstructural evolution and mechanical property development with nickel addition in low-carbon weld butt joints
Journal of Materials Processing Technology. 2018. DOI : 10.1016/j.jmatprotec.2018.07.009.A new hybrid Additive Manufacturing process combining Selective Laser Melting and Laser Shock Peening
Lausanne, EPFL, 2018. DOI : 10.5075/epfl-thesis-9088.Study on Bainite/Martensite Transformation in Reheated Weld Metals
2018-01-01. 10th International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications (THERMEC), Paris, FRANCE, Jul 09-13, 2018. p. 645-650. DOI : 10.4028/www.scientific.net/MSF.941.645.Morphological and Crystallographic Characteristics of alpha Structure in a Low-Carbon Iron-Nickel Alloy
Crystals. 2018-12-01. DOI : 10.3390/cryst8120468.Strain-induced dissolution of Y-Ti-O nano-oxides in a consolidated ferritic oxide dispersion strengthened (ODS) steel
Materialia. 2018. DOI : 10.1016/j.mtla.2018.11.002.The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials
Progress in Materials Science. 2018. DOI : 10.1016/j.pmatsci.2017.10.004.The relationship between low-temperature toughness and secondary crack in low-carbon bainitic weld metals
Materials Characterization. 2018. DOI : 10.1016/j.matchar.2018.09.012.On the benefits of a stress criterion for the simulation of cup drawing process
International Journal Of Material Forming. 2018. DOI : 10.1007/s12289-016-1313-8.Variant Selection in Fe-20Ni-1.8C under Bending
Crystals. 2018-12-01. DOI : 10.3390/cryst8120474.Non-isothermal aging of a high-Zn-containing Al-Zn-Mg-Cu alloy: microstructure and mechanical properties
MATERIALS SCIENCE AND TECHNOLOGY. 2018. DOI : 10.1080/02670836.2017.1410369.2017
Competition between intragranular and intergranular deformation mechanisms in ODS ferritic steels during hot deformation at high strain rate
Journal of Materials Science. 2017. DOI : 10.1007/s10853-017-1730-1.Controlling grain structure and texture in Al-Mn from the competition between precipitation and recrystallization
Acta Materialia. 2017. DOI : 10.1016/j.actamat.2017.09.032.In Situ Characterization of Inconel 718 Post-Dynamic Recrystallization within a Scanning Electron Microscope
Metals. 2017. DOI : 10.3390/met7110476.Accounting for material parameters scattering in rolled zinc formability
Journal of Materials Processing Technology. 2017. DOI : 10.1016/j.jmatprotec.2017.02.021.Variant selection in surface martensite
Journal of Applied Crystallography. 2017. DOI : 10.1107/S160057671701398X.Method and Device for Implementing Laser Shock Peening or Warm Laser Shock Peening During Selective Laser Melting
EP3147048 ; US10596661 ; US2017087670 ; EP3147048 . 2017.Method and device for fabrication of 3d multi - material (composite) parts by selective laser melting combined with laser welding and cutting
WO2017108645 . 2017.The flow stress evolution and grain refinement mechanisms during hot deformation of Al-Mg alloy
Procedia Engineering. 2017. DOI : 10.1016/j.proeng.2017.10.732.3D Laser Shock Peening – A new method for the 3D control of residual stresses in Selective Laser Melting
Materials and Design. 2017. DOI : 10.1016/j.matdes.2017.05.083.Heating rate effect on particle stimulated nucleation and grains structure during non-isothermal annealing of multi-directionally forged solution treated AA2024
Materials Characterization. 2017. DOI : 10.1016/j.matchar.2017.03.025.Numerical simulation of mechanical deformation of semi-solid material using a level-set based finite element method
Modelling and Simulation in Materials Science and Engineering. 2017. DOI : 10.1088/1361-651X/aa788e.Effect of concurrent precipitation on the texture evolution during continuous heating of multi directionally forged solution treated Al-Cu-Mg alloy
Materials Characterization. 2017. DOI : 10.1016/j.matchar.2017.07.033.The surprising influence of continuous alternating electric current on recrystallization behaviour of a cold-rolled Aluminium alloy
Materials Characterization. 2017. DOI : 10.1016/j.matchar.2017.04.036.{225} habit planes in martensitic steels: from the PTMC to a continuous model
Scientific Reports. 2017. DOI : 10.1038/srep40938.Recrystallization behavior of multi-directionally forged over-aged and solution treated Al-Cu-Mg alloy during non-isothermal annealing
Materials and Design. 2017. DOI : 10.1016/j.matdes.2017.07.011.Hot deformation of a Fe-Mn-Al-C steel susceptible of κ-carbide precipitation
Materials Science & Engineering A. 2017. DOI : 10.1016/j.msea.2017.02.060.Tailoring residual stress profile of Selective Laser Melted parts byLaser Shock Peening
Additive Manufacturing. 2017. DOI : 10.1016/j.addma.2017.05.008.2016
A review of dynamic recrystallization phenomena in metallic materials
Materials & Design. 2016. DOI : 10.1016/j.matdes.2016.09.012.On the sluggish recrystallization of a cold-rolled Al–Mn–Fe–Si alloy
Journal of Materials Science. 2016. DOI : 10.1007/s10853-015-9486-y.Zener Pinning
Reference Module in Materials Science and Materials Engineering; Oxford: Elsevier, 2016. p. 1-8.Mean field modelling of dynamic and post-dynamic recrystallization during hot deformation of Inconel 718 in the absence of δ phase particles
Materials Science and Engineering a. 2016. DOI : 10.1016/j.msea.2015.12.102.Investigation of the relationships between mechanical properties and microstructure in a Fe-9%Cr ODS steel
EPJ Nuclear Sci. Technol.. 2016. DOI : 10.1051/epjn/e2016-50008-7.Numerical Modeling of Tube Forming by HPTR Cold Pilgering Process
Journal of Materials Engineering and Performance. 2016. DOI : 10.1007/s11665-016-2203-4.2015
Microstructural characterizations of 14Cr ODS ferritic steels subjected to hot torsion
Journal of Nuclear Materials. 2015. DOI : 10.1016/j.jnucmat.2014.12.104.Selective Growth of Low Stored Energy Grains During δ Sub-solvus Annealing in the Inconel 718 Nickel-Based Superalloy
Metallurgical and Materials Transactions A. 2015. DOI : 10.1007/s11661-015-3035-9.A mean field model of dynamic and post-dynamic recrystallization predicting kinetics, grain size and flow stress
Computational Materials Science. 2015. DOI : 10.1016/j.commatsci.2015.02.043.2014
Assessment of simplified 2D grain growth models from numerical experiments based on a level set framework
Computational Materials Science. 2014. DOI : 10.1016/j.commatsci.2014.05.060.Anisotropic mechanical behavior and formability criterion for zinc sheets
Journal of Materials Processing Technology. 2014. DOI : 10.1016/j.jmatprotec.2014.06.023.Multipass forging of Inconel 718 in the delta-Supersolvus domain: assessing and modeling microstructure evolution
2014. 2nd European Symposium on Superalloys and their Applications, Giens, FRANCE, MAY 12-16, 2014. DOI : 10.1051/matecconf/20141412001.Development of a level set methodology to simulate grain growth in the presence of real secondary phase particles and stored energy – Application to a nickel-base superalloy
Computational Materials Science. 2014. DOI : 10.1016/j.commatsci.2014.03.054.2013
Development of adapted material testing for cold pilgering process of ODS tubes
The Current State-of-the-Art on Material Forming; Aveiro, 2013. p. 2243-2251.Strain induced abnormal grain growth in nickel base superalloys
Sydney, NSW.Relationships between mechanical behavior and microstructural evolutions in Fe 9Cr-ODS during the fabrication route of SFR cladding tubes
Journal of Nuclear Materials. 2013. DOI : 10.1016/j.jnucmat.2013.04.052.An anisotropic stress based criterion to predict the formability and the fracture mechanism of textured zinc sheets
Journal of Materials Processing Technology. 2013. DOI : 10.1016/j.jmatprotec.2012.12.006.EBSD coupled to SEM in situ annealing for assessing recrystallization and grain growth mechanisms in pure tantalum
Journal of Microscopy. 2013. DOI : 10.1111/jmi.12034.Thermo-mechanical fatigue behaviour of welded tubular parts made of ferritic stainless steel
International Journal of Fatigue. 2013. DOI : 10.1016/j.ijfatigue.2013.04.004.2012
Evolution of microstructure and twin density during thermomechanical processing in a γ-γ' nickel-based superalloy
Acta Materialia. 2012. DOI : 10.1016/j.actamat.2012.06.028.Using cross stamping to test Zinc sheets formability
2012.Techniques for modelling microstructure in metal forming processes
Microstructure Evolution in Metal Forming Processes; Elsevier Ltd., 2012. p. 17-34.Fast in-situ annealing stage coupled with EBSD: A suitable tool to observe quick recrystallization mechanisms
Materials Characterization. 2012. DOI : 10.1016/j.matchar.2012.04.020.Understanding and Modeling of Grain Boundary Pinning in Inconel 718
Superalloys 2012; John Wiley and Sons, 2012. p. 73-82.A simple approach for the modeling of an ODS steel mechanical behavior in pilgering conditions
Journal of Nuclear Materials. 2012. DOI : 10.1016/j.jnucmat.2011.10.013.Assessment of a new fabrication route for Fe-9Cr-1W ODS cladding tubes
Journal of Nuclear Materials. 2012. DOI : 10.1016/j.jnucmat.2011.12.013.2011
Identification of cyclic and anisotropic behaviour of ODS steels tubes
2011. 11th International Conference on the Mechanical Behavior of Materials, ICM11, 2011. DOI : 10.1016/j.proeng.2011.04.201.Level set framework for the finite-element modelling of recrystallization and grain growth in polycrystalline materials
Scripta Materialia. 2011. DOI : 10.1016/j.scriptamat.2010.11.032.A new approach to modeling the flow curve of hot deformed austenite
ISIJ International. 2011. DOI : 10.2355/isijinternational.51.945.A two-site mean field model of discontinuous dynamic recrystallization
Materials Science and Engineering A. 2011. DOI : 10.1016/j.msea.2011.06.023.Theoretical and experimental evaluation of the formability of anisotropic zinc sheets
2011.Towards the modelling of recrystallization phenomena in multi-pass conditions: application to 304L steel
École Nationale Supérieure des Mines de Paris, 2011. DOI : 10.13140/2.1.4177.2321.Quasi In situ EBSD investigation of static recrystallization in 304L stainless steel at elevated temperature
2nd International Conference on Material Modelling, Paris, France, August 31- September 2, 2011.2010
About the possibility of grain boundary engineering via hot-working in a nickel-base superalloy
Scripta Materialia. 2010. DOI : 10.1016/j.scriptamat.2010.02.019.3D finite element model of semi-solid permeability in an equiaxed granular structure
Computational Materials Science. 2010. DOI : 10.1016/j.commatsci.2010.04.042.Effect of thermomechanical processes on Σ3 grain boundary distribution in a nickel base superalloy
Berlin.A multi-scale approach for high cycle anisotropic fatigue resistance: Application to forged components
Materials Science and Engineering A. 2010. DOI : 10.1016/j.msea.2010.03.042.2009
A multiscale analysis of ductile steel grades damage and fracture mechanisms
2009. 12th International Conference on Fracture 2009, ICF-12, 2009.Adaptive mesh refinement and automatic remeshing in crystal plasticity finite element simulations
Modelling and Simulation in Materials Science and Engineering. 2009. DOI : 10.1088/0965-0393/17/7/075012.A multiscale approach to model the anisotropic deformation of lithospheric plates
Geochemistry, Geophysics, Geosystems. 2009. DOI : 10.1029/2009GC002423.Finite element model of primary recrystallization in polycrystalline aggregates using a level set framework
Modelling and Simulation in Materials Science and Engineering. 2009. DOI : 10.1088/0965-0393/17/6/064006.Numerical life prediction of mechanical fatigue for hot forging tools
International Journal of Material Forming. 2009. DOI : 10.1007/s12289-009-0537-2.Structural reactivation in plate tectonics controlled by olivine crystal anisotropy
Nature Geoscience. 2009. DOI : 10.1038/ngeo528.2008
Prediction of tantalum microstructure evolution during thermomechanical treatments using FEM calculations with a dislocation density based constitutive law
2008. 9th International Conference on Technology of Plasticity, ICTP 2008, 2008.Modelling dynamic and post-dynamic recrystallization of Zy-4 during and after hot extrusion
2008. p. 216-223.Linking plastic deformation to recrystallization in metals using digital microstructures
Philosophical Magazine. 2008. DOI : 10.1080/14786430802502575.Level set framework for the numerical modelling of primary recrystallization in polycrystalline materials
Scripta Materialia. 2008. DOI : 10.1016/j.scriptamat.2008.02.016.Modelling of primary recrystallization using digital microstructures
2008.On the influence of particle distribution and reverse loading on damage mechanisms of ductile steels
Materials Science and Engineering A. 2008. DOI : 10.1016/j.msea.2008.05.033.Multiaxial fatigue criterion accounting for anisotropy in forged components
International Journal of Material Forming. 2008. DOI : 10.1007/s12289-008-0074-4.2007
3D FEM simulation of the flow forming process using lagrangian and ALE methods
2007. MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications - NUMIFORM '07: 9th International Conference on Numerical Methods in Industrial Forming Processes, 2007. DOI : 10.1063/1.2740821.Using Lagrangian particles to efficiently describe microstructure evolution in metal forming - Application to texture-induced mechanical anisotropy
Modelling and Simulation in Materials Science and Engineering. 2007. DOI : 10.1088/0965-0393/15/3/001.Development of numerical tools for the multiscale modelling of recrystallization in metals, based on a digital material framework
2007. MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications - NUMIFORM '07: 9th International Conference on Numerical Methods in Industrial Forming Processes, 2007. DOI : 10.1063/1.2740840.Reducing computational cost and allowing automatic remeshing in FEM models of metal forming coupled with polycrystal plasticity
2007. MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications - NUMIFORM '07: 9th International Conference on Numerical Methods in Industrial Forming Processes, 2007. DOI : 10.1063/1.2740842.2006
Coupling the thermal and mechanical fields to metallurgical evolutions within a finite element description of a forming process
Computer Methods in Applied Mechanics and Engineering. 2006. DOI : 10.1016/j.cma.2004.11.034.2004
Influence of modelling variables on the distribution of lattice strains in a deformed polycrystal, with reference to neutron diffraction experiments
Modelling and Simulation in Materials Science and Engineering. 2004. DOI : 10.1088/0965-0393/12/4/006.2003
Measurement of In-Grain Orientation Gradients by EBSD and Comparison with Finite Element Results
Advanced Engineering Materials. 2003. DOI : 10.1002/adem.200300376.Prediction of residual stresses and springback after bending of a textured aluminium plate
2003. 6th European Mechanics of Materials Conference on Non-Linear Mechanics of Anisotropic Materials EUROMECH-MECAMAT'2002, 2003.On the mechanical behaviour of AA 7075-T6 during cyclic loading
International Journal of Fatigue. 2003. DOI : 10.1016/S0142-1123(02)00149-4.2002
Prediction of intergranular strains in cubic metals using a multisite elastic-plastic model
Acta Materialia. 2002. DOI : 10.1016/S1359-6454(02)00369-5.3D elastic-plastic finite element simulation of cold pilgering of zircaloy tubes
Journal of Materials Processing Technology. 2002. DOI : 10.1016/S0924-0136(02)00379-5.2000
Parameter identification method for a polycrystalline viscoplastic selfconsistent model based on analytical derivatives of the direct model equations
Modelling and Simulation in Materials Science and Engineering. 2000. DOI : 10.1088/0965-0393/8/2/309.Sensitivity of α-ZY4 high-temperature deformation textures to the β-quenched precipitate structure and to recrystallization: Application to hot extrusion
Acta Materialia. 2000. DOI : 10.1016/S1359-6454(00)00179-8.1996
Nonequilibrium thermodynamics of ferroelectric domain evolution
Acta Materialia. 1996. DOI : 10.1016/1359-6454(95)00425-4.Research
Research at LMTM
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Teaching
Materials Science and Engineering