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Oriane Senninger

Oriane Senninger

Researcher Scientist

Center · CEMEF

Keywords

Awards & distinctions

  • 2023 CALPHAD best paper award

Team

MSR - Métallurgie, Structure, Rhéologie

Biography

Oriane Senninger is a researcher specializing in the modeling of additive manufacturing processes and associated metallurgical phenomena. Her work focuses on studying the microstructures generated by laser powder bed fusion (L-PBF) processes, particularly for alloys such as Inconel 718. She develops innovative numerical approaches, combining methods such as cellular automata, dendritic growth models (CAPTN), and multiscale thermomechanical simulations, to analyze the interactions between process parameters, microstructure, and the mechanical properties of materials. Her research also addresses directional solidification, chemical redistribution under irradiation, and the effects of magnetic transition on diffusion kinetics in ferritic alloys. His expertise includes modeling thermodynamic equilibria and heat transfer, with a particular focus on inter-scale couplings and computational optimizations.

Publication(s)

Teaching

Materials for Engineers

Lecturer

The in-person component (27 hours) is structured into plenary sessions in a lecture hall (12 hours), small-group sessions (12 hours) with fewer students, and presentations of lab reports to a panel (30 minutes). It also includes a written exam (2 hours and 30 minutes). Students’ independent work (18 hours) includes (in addition to the engine disassembly and reassembly mentioned above): A self-assessment multiple-choice quiz (30 min) on prerequisites. This self-assessment is conducted prior to the first class to identify students’ strengths and weaknesses and then focus on certain aspects during face-to-face instruction. An assignment on phase diagrams (2 hours) An assignment on material aging (2 hours) Laboratory work at the CMAT (6 hours): 13 lab sessions are conducted in groups of 4 to 5 students, supervised by the Center’s engineers and technicians as well as doctoral students, since most lab topics are related to current thesis projects. A 20-minute oral presentation for each lab is given at the end of the day in two parallel sessions. Students therefore complete one of the lab sessions and participate in or attend half of the presentations at the end of the day. Two similar days are organized to accommodate the entire class. Final exam review (5 hours)

Metal 3D Printing

Guest Lecturer

The curriculum for the course days is as follows: General introduction to additive manufacturing processes; overview of the phenomena involved in LBM and ColdSpray processes; thermodynamics; phase transformation during rapid solidification; associated microstructural evolution; mechanical behavior and properties of parts produced by additive manufacturing processes; post-processing; defect mitigation. LBM and ColdSpray fabrication techniques, construction steps, overview of experimental characterization methodologies related to additive manufacturing processes and defect analysis, measurement of residual stresses using X-ray diffraction (XRD). Numerical modeling of additive manufacturing processes; objectives of simulation tool development; physical phenomena monitored; resolution scales; prediction of final properties. Presentation (by an industry R&D engineer) on the use of additive manufacturing processes in an industrial context, the objectives pursued, and the expected results. In addition to these lectures, a project component will also be included in the course, lasting 6 hours, at the Materials Center (CMAT, Evry), requiring students to travel to this laboratory for two full days. During these two days, on the first morning, students will attend the lecture on fabrication and characterization techniques associated with additive processes (Session V—3 hours in the morning on Day 1). The subsequent training period (3 hours in the afternoon on Day 1 + 3 hours in the morning on Day 2) will be dedicated to carrying out the supervised projects. Independent work (3 hours in the afternoon on Day 2) may be conducted at the CMAT to allow for the review and analysis of the results, in preparation for the evaluation session. Project selections will be made no later than during the first lecture session.

PhD supervision

  • 2025 Development of a new multiphase grain structure model and application to additive manufacturing of high-entropy alloy MERA RINCON Jhon Alexander
  • 2025 Full-field modeling of solid-state phase transformation in titanium alloys LIU Bowen
  • 2023 Analysis of growth competitions of microstructures produced during the solidification of metal alloys HAMMOUD Racha
  • 2022 solidification paths and growth competition of microstructures SICARD André-Xavier
  • 2019 Developments and applications of a multi-scale numerical method coupling cellular automaton and parabolic needle network models for predicting dendritic grain structures WU Yijian
  • 2019 Modeling of microstructures generated in additive manufacturing by the LPBF process of a nickel-based alloy CAMUS Théophile