LEM3

UMR CNRS 7239
UdL
CNRS
A&M

                          
Departments
Department 2: IMPACT
Ingénierie des Microstructures, Procédés, Anisotropie, ComportemenT
Head of department

Nabila MALOUFI
+33 (0)3-72-74-78-65
nabila.maloufi@univ-lorraine.fr

Co-managers of department

Thierry GROSDIDIER
+33 (0)3-72-74-78-36
thierry.grosdidier@univ-lorraine.fr

Vincent TAUPIN
+33 (0)3-72-74-78-43
vincent.taupin@univ-lorraine.fr

Research themes
  • Axis 1: Méthodes innovantes d’analyse des Textures et des Microstructures
    Animators: Benoît BEAUSIR & Emmanuel BOUZY
  • Axis 2: Micromécanique, Auto-organisation, Plasticité, Longueurs internes (MAPLI)
    Animators: Stéphane BERBENNI & Thiebaud RICHETON
  • Axis 3: Etude des mécanismes de formation et d'évolution des textures et microstructures
    Animators: Lionel GERMAIN & Nathalie GEY
  • Axis 4: Texture, anisotropie des propriétés et tenue en service
    Animators: Julien CAPELLE & Eric FLEURY
  • Axis 5: Optimisation des procédés
    Animators: Roxane MASSION & Laurent WEISS
Poster and Team
View poster description of the department

Past events
  • June 10, 2021: Antoine RUFFINI, from the Microstructure Study Laboratory (Université Paris-Saclay - ONERA - CNRS) will give a seminar entitled « Phase-field methods and their applications to study dislocation behavior in Ni-base superalloys ».
    Abstract
    Microsoft Teams Meeting
  • March 12, 2020 : Seminar by Frederic HABIYAREMYE, « Evolution of dislocation patterning under μN-nanoindentation and interactions with low-angle boundary in a bulk single crystal of medium entropy allo ».
  • January 30, 2020: Seminar by Clément ERNOULD, "Pushing the SEM to its limits while exploring new fields of applications of the high-angular resolution technique".
  • November 18-19, 2019
    Scientific Program

    >> Photo album
  • October 30 2019, 02 pm: Seminar by Hailong SHI, Yudong's PhD student, "Texture evolution of a laminated graphene nanoparticles (GNP) reinforced copper matrix composites."
  • October 17 2019, 02 pm: Seminar by Paul DIDIER, "Solutions matériaux et géométriques pour la réalisation de dispositifs médicaux implantables sur-mesure en alliages de titane - Application aux implants endo-osseux et supra-osseux obtenus par fabrication additive"
  • October 15 2019, 02 pm: Seminar by Dr László PETER "In-depth component distribution of electrodeposited alloys and multilayers"
  • July 11, 2019, 01:45 pm: Seminar by Marc DEGRAEF, "Novel Indexing Approaches for EBSD: Using the Complete Pattern"
  • June 20, 2019, 01:45 pm: Seminar by 4 MASTER Students

    • 1.45 pm: Messaoud HOMMIA "Characterization of the microstructure of a high carbon bainite steel after XTP rolling process"
    • 2.05 pm: Yossra KAMMOUN "Study of Nickel-base superalloy brazed joints with a quaternary Ni-Cr-Si-B filler metal"
    • 2.25 pm: Dassidi DOUKSOUNA "Mechanical characteristics and laws of behavior of a brazing joint for application automobile exchangers"
    • 2.45 pm: Anis ALIOUAT "Influence of oxidation of gas atomized aluminum powders"
  • June 13, 2019, 01:45 pm: Seminar by Eric HUG "Impact des composés intermétalliques sur la tenue mécanique et les propriétés fonctionnelles de fils cuivre-aluminium architecturés"
  • June 6, 2019, 01:45 pm: Seminar by 4 MASTER Students

    • 01:45 pm: Marcia BOUKANGOU : "Microstructural and texture characterization in a Ti 10-2-3 billet"
    • 02:05 pm: Seyyed BIRIAIE : "Architecturing of Metals by Severe Plastic Deformation"
    • 02:25 pm: Tania SOLA SAIZ : "Study by Raman spectroscopy of oxides obtained by friction between a steel ball and materials with hyper-deformed surfaces by ultrasonic shot peening"
    • 02:45 pm: Daouda DIBA : "Modeling of the residual stresses generated during TIG welding of brazed plates for heat exchangers"
  • May 23, 2019, 01:45 pm: Seminar "Effect of Surface Mechanical Attrition Treatment (SMAT) on 316L stainless steels and its behaviour in high cycle fatigue"
  • May 6 mai, 2019, 02:00 pm: Seminar by Manas UPADHYAY, young assistant teacher at école polytechnique de Palaiseau (https://www.polytechnique.edu/annuaire/fr/users/manas.upadhyay)
    "Mechanical and microstructural response during biaxial load path changes of stainless steel: in-situ neutron diffraction and multi-scale modeling"
  • April 4, 2019, 01:45 pm: Seminar by Vincent TAUPIN
    "Phase field model for twinning in Mg"
  • March 14, 2019, 01:45 pm: Seminar by Jérémy NIEZ "Study and understanding of dynamic phenomena during an impact - Application to a composite shock absorption system for the automotive sector"
  • February 28, 2019, 01:45 pm: Seminar by Thomas KAUFFMAN from the LMOPS (Laboratory of Material, Optics, Photonics and Sytem) "The Raman Spectroscopy for the Material Study"
  • February 14, 2019, 01:45 pm: Seminar by Chunyang ZHANG about "3D reconstruction of complex configurations observed by electron microscopies"
  • February 7, 2019, 01:45 pm: Seminar by Safaa LHADI KAHLOUCHE about "Micromechanical modelling of elasto-viscoplastic behavior of near beta-Ti alloys: Effect of elastic anisotropy on elastic-viscoplastic transition, incompatibility stresses and slip activity"
  • January 17, 2019, 01:45 pm. Seminar by Julien GENÉE:
    "Experimental and numerical study of plastic deformation mechanisms in a metal matrix composite: Fe-TiB2 steel"

    Abstract
    ArcelorMittal is developing a new generation of steels with improved specific stiffness to go further in weight reduction of today’s automotive structure. Steel matrix composites with ceramic reinforcements (TiB2) are promising as they allow for a significant gain of about 15% in specific rigidity and they can be produced through conventional industrial process such as continuous casting which guarantees high productivity and low cost.
    However, plastic deformation and damage mechanisms of Fe-TiB2 need to be further studied in order to evaluate the very heterogeneous distribution of stress field between ductile ferrite matrix and high modulus reinforcements. First, the objective of the research project is to perform advanced characterization of tensile deformation mechanisms of the steel composite using a FEG-FIB SEM equipped with an EBSD system. Then, an advanced full-field crystal plasticity model using FFT method is used to reproduce observed experimental results and predict deformation heterogeneities. In particular, the study focuses on the evolution of the distribution of dislocation densities and the evaluation of incompatibility stresses at ferrite/ceramic interfaces.

>> Events before 2019

Presentation

Le Département 2 regroupe 3 des anciennes équipes du LEM3 (UMR 7239) et un groupe de l'ancien laboratoire LABPS (EA 4632 ENIM-UL) :

  • APLI (Auto-organisation, Plasticité et Longueurs Internes) : équipe qui comportait 6 enseignants-chercheurs, 4 chercheurs CNRS, 1 personnels ITRS ; (Anciens responsables S. Berbenni et J.M. Raulot)
  • TMP (Textures, Microstructures et Procédés) : Enseignants/chercheurs : équipe qui comportait 11 enseignants-chercheurs et 2 ingénieurs ; (Anciens responsables E. Fleury et F. Wagner)
  • 3TAM (Transformation, Textures, Topologie et Anisotropie des Matériaux) : équipe qui comportait 9 enseignants-chercheurs, 1 chercheur CNRS et 4 personnels IRTS; (Anciens responsables E. Bouzy et N. Gey)
  • Groupe Fatigue-Rupture du LABPS (EA 4632 ENIM-UL) : groupe qui comprenait 8 enseignants-chercheurs (Ancien responsable Z. Azari)

Cette fusion, qui offre une meilleure visibilité externe, est motivée essentiellement par la cohérence scientifique et la complémentarité déjà traduite par les nombreuses collaborations et actions communes existantes. L’intérêt principal et moteur de ce regroupement est de réunir et renforcer les différents domaines d’expertise concernant l’étude expérimentale et théorique des matériaux.

L’objectif visé est une meilleure compréhension des liens procédés / microstructures / comportement mécanique, de l’échelle nanométrique (dislocations, joints de grains...) à l’échelle macroscopique (composant) en passant par des échelles intermédiaires (cristaux, bicristaux, agrégats polycristallins...). Bien que la majorité des matériaux étudiés soient des métaux et alliages, il faut souligner que les outils mis en place et nos compétences permettent actuellement d’élargir notre champ d’investigation à d’autres matériaux (ZrO, UO2, matériaux ferromagnétiques à mémoire de forme et magnétocaloriques, analyse des défauts dans les cellules photovoltaïques à base de Silicium en corrélation avec leurs rendements...).