Maxime Ecochard
Doctorant - Ecole Nationale Supérieure des Mines d'Albi-Carmaux (IMT Mines Albi) Membre du groupe Métrologie, Identification, Contrôle et surveillance (MICS) et du groupe Surfaces, Usinages, Matériaux et Outillages (SUMO) 1M15, Mines d'Albi-Carmaux, Campus Jarlard 81013 Albi (recherche) |
Activités de recherche :
Sujet de thèse : Micro thermoréflectométrie pour l’étude de transformations structurales à l’échelle des grains de matériaux métalliques aéronautiques
Thesis Subject : Micro thermoreflectometry for the study of structural transformations on the scale of grains of aeronautical metallic materials
Abstract :
The purpose of this study is to study the phenomena of multi-physical, thermomechanical coupling and to analyze the evolution of microstructure as a function of the optical and mechanical properties measured at small scales on the material. The aim is to construct macroscopic thermo-mechanical behaviour laws of materials from microscopic observations from fine scales of microstructure and grain. This thesis work is in line with the theme of multi-scale measurements in materials mechanics, which are dedicated to a better understanding of thermomechanical phenomena. It focuses on the development of experiments carried out under different purely thermomechanical and/or physical stresses and in-situ measurement methods for both kinematic and thermal fields at the local level. These experiments and methods aim to provide the mechanical properties of heterogeneous materials at the scale of the various microstructural elements present (phases, grains, texture fibres, etc.) by measuring local kinematic and thermal fields. During interrupted tests, scanning electron microscopy (SEM) or even optical microscopy (OEM) or Electron BackScattered Diffraction (EBSD) techniques provide access to the final grain morphology (size and shape) and texture. For in-situ tests, only field measurement techniques such as digital image correlation (DIC) or thermography offer the possibility to monitor the evolution of deformation fields, thermal fields and surface properties.
Activités d'enseignement :
TP avancés sur la fabrication additive
TD Propriétés structurales des matériaux (alliages et diagrammes de phase, traitement thermique et diagramme TTT)
TD Architecture et Cohésion des Solides : cas des polymères
TP Traitements thermiques et microstructure des aciers
TP de CAO (Solidworks)
TD Analyse système et Propriété intellectuelle appliquée à la thèse
Responsabilités collectives :
Représentant des doctorants de l’ICA-A (2020/2021)
Activités administratives de soutien à la recherche :
Membre de la Commission d’Animation Scientifique
Production scientifique :
3 contributions trouvéesAnnée | Type | Auteurs et titre du document | Liens |
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2022 | ACL | Ali Kalush, Damien Texier, Maxime Ecochard, Quentin Sirvin, Karim Choquet, Thomas Gheno, Nicolas Vanderesse, Walid Jomaa, Philippe Bocher. Size effects on high temperature oxidation of MCrAlY coatings processed via APS and HVOF depositions Surface and Coatings Technology, Elsevier, 440, p.128483 | [HAL] / [BIB] / [DOI] |
2021 | ACL | Damien Texier, Maxime Ecochard, Thomas Gheno, Daniel Monceau, Mehdi Salem, Philippe Lours. Screening for Al2O3 failure in MCrAlY APS coatings using short-term oxidation at high temperature Corrosion Science, Elsevier, 184, p.1-15/109334 | [HAL] / [BIB] / [DOI] |
2019 | P | Benjamin Javaudin, Maxime Ecochard, Rémi Gilblas, Thierry Sentenac, Yannick Le Maoult, Damien Texier. Suivi in-situ de l’oxydation d’un revêtement MCrAlY par thermoréflectométrie proche infrarouge SFT 2019 - 27 ème Congrès Français de Thermique, Nantes, FR | [HAL] / [BIB] |