Researcher in physical metallurgy, focused on embrittlement mechanisms of metallic materials at the atomic scale. (M/F)

Job Description

Missions

Metals and alloys are known for their high mechanical strength and ductility. However, when they contain impurities, they can become brittle and break without warning. This postdoctoral project, in the framework FREGATE (Objectif Labex d'excellence from Région Normandie), seeks to address this challenge by investigating the mechanisms of brittle fracture at the atomic scale. Such an investigation will be done using a unique tool in the world, SATMET, developed at GPM. This instrument combines a transmission electron microscope and an atom probe, enabling the simultaneous analysis of a material's crystallography, chemistry, and fracture mechanisms in situ, at the atomic scale.

Activity

Main expected work:
_Microstructural characterisation through electron microscopes (scanning and transmission), atom probe tomography.
_Instrumental development of mechanical testing at the atomic scale.
_Understanding embrittlement phenomena and mechanisms through a novel approach.

Your Profil

Skills

Proficient with scanning electron microscopy coupled with focused ion beam and electron backscatter diffraction technique, scanning transmission electron microscopy and atom probe tomography.
Experience in impurity analysis in metallic materials, mechanics, particularly ductile-brittle transitions and interaction between crystal defects and impurities.
Ability to design and implement rigorous experimental protocols, and correlate observations with the theory of brittle/ductile fracture.
Experience with data analysis tools, such as Python or MATLAB is a plus.

Your Work Environment

The GPM (Materials Physics Group, UMR CNRS 6634) is structured into 5 departments: Metallurgy, Microstructures, and Mechanics; Scientific Instrumentation; Functional Materials and Nanostructures; Disordered Systems and Polymers; and Thematic Developments and Innovations. It comprises 140 staff members, including 56 faculty members/researchers, 33 technical and administrative staff, and 51 doctoral/postdoctoral students and interns. The laboratory is located on the Rouen Normandy Science and Engineering Campus (in Saint-Étienne-du-Rouvray), within the University of Rouen Normandy and INSA Rouen Normandy (7,000 m²).

The recruited researcher will be attached to the Metallurgy, Microstructures and Mechanics department, which boasts a virtually unique experimental facility enabling research on metals and alloys at multiple scales, from atomic-scale observation to thermomechanical testing. This multi-scale experimental work is complemented by numerical modeling adapted to the different scales involved. The recruited individual will be part of the “phase transformation team”, which aims to better understand the fundamental mechanisms involved in very fine-scale phase transformations in metallic alloys, in order to apply them to industrial grades.

Constraints and risks

Chemical Treatments (use of solvents, acids and bases possible) occasionally

Compensation and benefits

Compensation

between EUR 3072 and 4258.87 gross monthly salary according to experience

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

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.

CNRS

The research professions