-PhD: "Study of elementary deformation mechanisms of multi-component metallic alloys (high-entropy alloys) with a body centered cubic structure."

This thesis is incorporated within the framework of fundamental research on High-Entropy Alloys (HEAs) with a body centered structure (BCC) – new alloys whose name emphasizes their inherent high mixing entropies.

The proposed thesis is dedicated to the study of refractory HEAs with a BCC structure. The main objective of the work is to examine the evolution of mechanical properties of solid solutions Nbx(HfTaTiZr)100-x with x ranging between 20 and 100 (at.%). The proposed strategy would lead to identify the impact of elementary substitutions in the solid solutions on the mechanical behavior of the processes materials. The evolution of underlying deformation mechanisms will be at the center of the study and mainly performed by in-situ Transmission Electron Microscopy (TEM).

Thesis supervision: Jean-Philippe Couzinié (Associate Professor [accredited research director], couzinie@icmpe.cnrs.fr) and Frederic Mompiou (CNRS scientist [accredited research director], frederic.mompiou@cemes.fr).

LSPM research team (CNRS, UPR3407, Paris 13 University) will also be partner of the study under the supervision of Guy Dirras (Professor, dirras@lspm.cnrs.fr).

Desired candidate profile: He or she should demonstrate a solid background in Materials Science with an excellent ranking/level in their Master’s degree.

Beginning of the thesis/funding : 2018, 1st October; Deadline for application: 2018, 31 May.

The thesis will be held at ICMPE in Thiais, near Paris , with long stays at CEMES in Toulouse.

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