R&D Associate Corrosion Science and Technology Group

Marie Romedenne

Ph.D. Materials Scientist / Engineer – High-Temperature & Harsh Environment Applications | R&D Staff Scientist, Oak Ridge National Laboratory

Extensive expertise in structural and functional materials compatibility under extreme conditions (T > 500 °C), including exposure to liquid metals (Na, Li, PbLi, FLiBe, Bi, Sn), high-temperature gases (H₂, O₂, H₂O mixtures), irradiation, and mechanical stress. Focused on improving safety, extending service life, and enhancing the efficiency of advanced fission and fusion reactors, as well as conventional and low-carbon fuel combustion engines and turbines.

  • Extensive knowledge of cast, wrought, and additively manufactured steels, Ni-based, NiFe-based, Fe-based superalloys, Zr-based materials, SiC, and high temperature corrosion-resistant coatings.
  • In-depth understanding of the interplay between aggressive environments and mechanical behavior (tensile, creep, corrosion-induced cracking).
  • Expertise in thermodynamic and lifetime modeling, incorporating AI/ML tools for predictive analytics of material behavior and degradation in complex systems.
  • Advanced characterization experience using SEM, TEM, and APT to analyze microstructural evolution, phase stability, and damage mechanisms at multiple length scales.
  • Proven ability to link experimental insights with computational models for accelerated materials development.
  • Joint Faculty Assistant Professor
    Bredesen Center for Interdisciplinary Research and Graduate Education
    November 2024 – Present
  • Research and Development Staff
    Oak Ridge National Laboratory (ORNL)
    April 2024 – Present
  • Research and Development Associate
    Oak Ridge National Laboratory (ORNL)
    May 2021 – April 2024
  • Post-doctoral Research Associate
    Oak Ridge National Laboratory (ORNL)
    January 2019 – May 2021
  • Teaching Assistant – Undergraduate Materials Laboratory
    University Paris-Saclay
    October 2015 – October 2018
  • Research Assistant – Composite Materials
    McGill University
    Summer 2014
  • Best Poster Award, Gordon Research Conference – High Temperature Corrosion Conference, 2023
  • Best Ph.D. Award, Prix Léopold Escande, 2018
  • Best Poster Award, Gordon Research Seminar – High Temperature Corrosion Conference, 2017
  • Ph.D. in Materials Science
    Institut National Polytechnique de Toulouse / CEA-Saclay, France
    2018
  • M.S. in Materials Science and Engineering
    INP ENSIACET, France
    2015
  • Peer Reviewer for Corrosion Science, Oxidation of Metals, Materials at High Temperatures, Materials and Corrosion, Metallurgical Research and Technology, Journal of Alloys and Compounds
  • Member, The Minerals, Metals & Materials Society (TMS International)
  • Committee Member, Corrosion and Environmentally Effects Committee (CEEC), TMS