Développement de nuances pour les pièces automobiles.

Project for Arcelormittal Maizieres Research.

> Quality Manager for SAM Montereau> Control and improve the quality of products on the different plants of the group.> Certifications management (Audits preparation, Ensure the conformity of the different control devices ...).> Stock management, product traceability.> Studies on the different metallurgical problems of the group, specially Fatigue issues.

> Study on the reproductibility of the solidification structures in cold crucible, for a Phd on steel inoculation.> Define a reproductible experimental protocol to investigate the effect of different inoculants.> Study on the representativity of the characterisation method.> Imagine a serial grinding technic to reconstruct the structures in 3D.

> Study in the rolling contact fatigue behaviour of different 100Cr6 steels.> Construction of the S/N curves with experimental data.> Investigation on the breaking sections to identify the causes of failures, XRD residual stresses measurement.

> Study on the production of GS 400-18 LT cast iron. (composition, cooling conditions....)> Imagine an adjacent sampling inside the mould and study his representativity.> Sampling during production, Chemical analysis with spark spectrometer, tensile tests, microstructure analysis.

> Study on the corrosion behaviour of Cr-Ni alloys inside liquid glass.> Oxidation of different Cr-Ni alloys at high temperature, under air and glass.> SEM characterisation of the oxide layers (nature, thickness, morphology, concentration profiles).

Optimisation and comparaison of differents automatic molding processes