PhD contract in Materials Science - high entropy alloys (M/F)
New
- FTC PhD student / Offer for thesis
- 36 mounth
- BAC+5
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Matériaux Ingénierie et Science
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
69621 VILLEURBANNE
Contract Duration
36 mounth
Date of Hire
01/09/2026
Remuneration
2300 € gross monthly
Apply Application Deadline : 17 April 2026 23:59
Job Description
Thesis Subject
Refractory high-entropy alloys (RHEAs) with a body-centered cubic (bcc) structure are
single-phase solid solutions composed of elements such as Ti, Zr, Hf, W, Ta, Mo, V, Cr, or Nb, all present in high concentrations. They combine a very high strength even above 1400°C and an excellent thermal stability, making them promising materials for high-temperature applications. However, their ductility at room temperature is limited. Activating the "TRIP" effect (transformation-induced plasticity) seens an interesting approach to improve RT ductility, but very little is known to date on the links between activated mechanisms and alloy composition.
In this doctoral work, a controlled exploration of the RHEA composition space will be
conducted by combining additive manufacturing methods and rapid characterization of both structure and mechanical properties. Key compositions will then be selected and produced using classical metallurgy techniques, enabling a more in-depth characterization of microstructures under deformation at room temperature. This will allow for the identification of the sequences of elementary mechanisms associated with the TRIP effect, depending on alloy composition, and their links with macroscopic mechanical properties will be established. The ultimate goal is to provide an informed mapping of these mechanisms and to propose simple design criteria.
The doctoral work will be primarily experimental: synthesis, thermomechanical processing, characterizations (XRD, SEM, EBSD, TEM, etc.), and mechanical testing. The recruited candidate will be expected to present his/her scientific findings at national and international conferences and to write research articles based on the obtained results.
Your Work Environment
The doctoral contract is funded through an ANR project. The work will be carried out primarily at the MatéIS laboratory at INSA Lyon, a Materials Science laboratory at the intersection between Chemistry, Physics and Mechanics. The work will be carry out in the METAL (metals and alloys) group.There will be some occasional stays at IJL Nancy. Comparisons between the experimental results of this thesis and multiscale simulations conducted
elsewhere as part of the same ANR project will be performed.
Compensation and benefits
Compensation
2300 € gross monthly
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR5510-CELVAR-002 |
|---|---|
| CN Section(s) / Research Area | Material and structural engineering, solid mechanics, biomechanics, acoustics |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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