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Portal > Offres > Offre UMR6634-CHRVUR-016 - Modélisation atomistique de la précipitation des carbides métastables dans des aciers martensitiques H/F

Atomistic modeling of precipitation kinetics of metastable carbides in martensite at low temperature

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Français - Anglais

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General information

Reference : UMR6634-CHRVUR-016
Workplace : ST ETIENNE DU ROUVRAY CEDE
Date of publication : Tuesday, November 05, 2019
Type of Contract : FTC Scientist
Contract Period : 12 months
Expected date of employment : 1 February 2020
Proportion of work : Full time
Remuneration : between EUR 2 643 and 3766 € gross monthly salary according to experience
Desired level of education : PhD
Experience required : Indifferent

Missions

Atomistic modelling of phase transformations in the martensite steels. The aim of this project is to understand the carbon diffusion at low temperature in martensite phase and to predict the precipitation of metastables carbides using atomistic modelling based on the atomic density function approach.

Activities

To study the dynamics of carbon diffusion in the martensite phase the Atomic Density Function (ADF) method will be used. This method is based on the resolution of microscopic diffusion equation. The postdoctoral researcher will be applied in the development of the theoretical model based on the ADF method and in the improvement of the existent numerical code. He/she will be principal investigator in this project.

Skills

The candidate should have a PhD in solid state physics, computational physics or theoretical physics and solid knowledge in solid state physics. The experience in the Phase Field modelling will be appreciated. The candidate will be in interaction with the experimental partners and will participate in interpretation of experimental data and observations.

Work Context

The post-doctoral position will be supported by the ANR/DFG project “C-TRAM”. This project will be conducted in collaboration with the group of Pr. J. Neugebauer from Max-Planck-Institute in Düsseldorf. The postdoctoral project will be conducted at the GPM UMR 6634, University of Rouen Normandy. Some trips between the GPM and the Max-Planck Institute in Düsseldorf will be also scheduled.
The research laboratory "Group of Physics of Materials (GPM)" is a Joint Research Unit (UMR 6634) associated to University of Rouen Normandie, INSA of Rouen Normandie (both members of the federation of Normandy University) and affiliated to the French National Research Center (CNRS) as a member of the Institute of Physics (INP) and also of the Institute of Engineering and Systems Sciences (INSIS).The laboratory has developed a strong expertise in scientific instrumentation and in material characterization down to the atomic scale, with a special emphasis on the connection between nanoscaled structures and properties. The laboratory (covering a surface area of about 7000 m2) is located in the premises of the University of Rouen Normandie (6500 m2) and the INSA of Rouen Normandie (500 m2), on the science campus of the “technopole du Madrillet” (situated in the south of Rouen city). The laboratory, headed by Professor Philippe Pareige, has 170 staff (62 professors, assistant professors and full time scientists; 30 application engineers, technicians and administrators; about 60 PhD students, about 15 post-docs and guest researchers). The laboratory is organized in five Scientific Departments.
The post-doctoral researcher will be conducted his/her project in the department “Metallurgy: Aging and Mechanics: from atom to structure” with the team from ERAFEN (Fundamental Aspects of Phase Transformations at nanometric scale). This team has 9 permanents researchers, 1 engineer-researcher, 1 post-doctoral researcher and 4 PhD students). The link between the microstructure and properties of materials is the centre of interest of the ERAFEN. The modelling results of the physical mechanisms of phase transformations in alloys are validated by nanoanalysis at the same scale. The input parameters of the models are derived from microstructural investigations, mostly by atom probe tomography (APT), electron microscopy (EM) and Mössbauer spectroscopy (MS). Microstructural analyses are also served as 'benchmarks' to validate the assumptions used for simulation.

Additional Information

- Some trips between the GPM and the Max-Planck Institute in Düsseldorf will be scheduled.
- The contract may be renewed

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