Postdoc fellow in multiscale modelling of metal microstructures using 3D synchrotron data

ESRF - The European Synchrotron; Grenoble; Sur place; EUR 40 000 - 52 000; Plein temps

Résumé du poste

The ESRF in Grenoble invites a postdoctoral researcher to develop multiscale models of deformation and recrystallisation using CPFEM and phase-field methods. You will validate models against 3D experimental data and publish open-source pipelines, collaborating with DTU, KU Leuven and the University of Oxford.

You will handle large datasets, build analysis workflows, and present results at international conferences, contributing to ERC project D-REX and advancing computational materials science.

Qualifications

• PhD in materials science, physics, mechanical engineering or related field.
• Strong command of CPFEM and/or phase-field modelling of microstructures.
• Solid background in physical metallurgy and microstructure analysis.
• Programming in Python and MATLAB; experience on HPC resources.
• Ability to work with large, heterogeneous datasets and build analysis pipelines.
• Familiarity with 3D characterization techniques is welcome but not required.

Responsabilités

• Develop and calibrate CPFEM models of deformation microstructures with grain-level validation.
• Develop PF models of recrystallisation and grain growth using experimental data.
• Validate models against 3D measurements and publish reproducible pipelines.

Connaissances

Python

MATLAB

Crystal plasticity modelling

HPC

Data analysis

3D data interpretation

Formation

PhD in materials science / physics / mechanical engineering

Outils

DAMASK

Abaqus

FEniCS

MOOSE

MICRESS

OpenPhase

3DXRD/DFXM analysis tools

Description du poste

Context & Job Description

As a postdoctoral researcher at the ESRF, you will develop multiscale models of deformation and recrystallisation structures within the European Research Council (ERC) Starting Grant project D-REX. You will use crystal plasticity finite element (CPFEM) modelling to describe the deformed state and its intragranular hardening, and phase field (PF) modelling to describe recrystallisation and grain growth, with the predicted deformed microstructure serving as the initial condition for annealing. The models will be validated directly against the 3D experimental datasets obtained at the ESRF by dark-field X-ray microscopy (DFXM), diffraction contrast tomography (DCT) and 3DXRD. The work is carried out in collaboration with the Technical University of Denmark (DTU), KU Leuven and the University of Oxford.

Your Responsibilities Include

• Developing and calibrating CPFEM models of deformation microstructures, with hardening laws validated at the individual grain level.
• Developing PF models of recrystallisation and grain growth parameterised from D-REX experimental data.
• Validating both against DFXM, DCT and 3DXRD measurements, and establishing reproducible workflows for comparing simulated and measured 3D orientation, misorientation and strain fields.

Publishing the results, presenting at international conferences, and releasing the modelling and comparison pipelines as documented open-source software.

For further information regarding this position and the D-REX ERC project please contact Can Yildirim via [e-mail].

Expected profile

You are enthusiastic about computational materials science and physical metallurgy, and motivated by the confrontation of models with demanding 3D experimental data. You enjoy building pipelines and working with large datasets, and you thrive in collaborative, international environments while being able to work independently. To be considered for this position, you should possess the following qualifications:

• A PhD in materials science, physics, mechanical engineering, computational mechanics or a related field, obtained within the last 3 years.
• Demonstrated command of crystal plasticity finite element modelling (for example DAMASK, MOOSE, Abaqus with user material subroutines, FEniCS) and/or phase field modelling of microstructural evolution (for example MOOSE, MICRESS, OpenPhase, or in-house codes).
• Solid background in physical metallurgy: dislocation substructures, texture, recovery, recrystallisation and grain growth.
• Strong programming skills in Python/MATLAB and experience running simulations on HPC resources.
• Ability to handle large, heterogeneous datasets and to design and implement new analysis pipelines.
• Familiarity with 3D characterisation techniques (DFXM, 3DXRD, DCT, EBSD) is welcome but not required; a strong theoretical and computational profile is equally suitable.
• Proven ability to collaborate within a multidisciplinary team across several institutes.

Proficiency in English (working language at the ESRF).

Working conditions

Contract of 18 months, renewable for a further 6 to 18-month period.

What We Offer

• Join an innovative international research institute, with a workforce from 38 different countries
• Collaborate with global experts to advance science and address societal challenges
• Come and live in a vibrant city, in the heart of the Alps, and Europe's Green Capital 2022
• Enjoy a workplace designed to support your quality of life
• Benefit from our competitive compensation and allowances package, including financial support for your relocation to Grenoble

For further information on employment terms and conditions, please refer to https://www.esrf.fr/home/Jobs/what-we-offer.html

The ESRF is an equal opportunity employer and encourages applications from disabled persons.

Company Description

The European Synchrotron, the ESRF, is an international research centre based in Grenoble, France.

Through its innovative engineering, pioneering scientific vision and a strong commitment from its 700 staff members, the ESRF is recognised as one of the top research facilities worldwide. Its particle accelerator produces intense X-ray beams that are used by thousands of scientists each year for experiments in diverse fields such as biology, medicine, environmental sciences, cultural heritage, materials science, and physics.

Supported by 19 countries, the ESRF is an equal opportunity employer and encourages diversity.