Impact of rolling parameters on porosity of thick aluminium products
4-6 months, could be pursued by a PhD
Constellium C-Tec, Voreppe (Isère)
This internship aims at getting a better understanding of significant porosity reduction obtained in an industrial trial with particular rolling process. It is proposed to combine lab-experiments and modeling:
- Mimic rolling conditions at lab scale using a hot-rolling mill and Servotest machine (high temperature-high deformation) to follow porosity evolution (with High-Resolution Ultrasound Technique HR-UT and microscopy) on different plate locations (mid-width vs. edges) and to investigate the impact of rolling parameters
- Pore morphology and size will be investigated with 3D high resolution tomography as a function of rolling parameters. Link between HR-UT signal and 3D pore characteristics will be assessed.
- Adapt internal Finite Element model for rolling to predict deformation levels with identified rolling conditions