The Metallic Materials & Processes Competence Center plays a role in the development and qualification of materials and processes that contribute to the technical and economic competitiveness of metallic solutions in the structures of aircraft, satellites, launchers and turbine engines.
The applications targeted by the competence center mainly concern critical mechanical systems and structures whose reliability has to be guaranteed in all circumstances. Accelerating the process for maturing special materials and processes for these applications is the central preoccupation of this competence center and its partners.
The competence center’s specificity is that it brings together in the same team scientific and technological skills that are both multidisciplinary and complementary. The mix enables the results of research projects to be transferred more rapidly to industry. The range of competencies include metallurgists, engineers, experts in process simulations, experts in thermomechanical modeling, process specialists and specialists in the characterization of materials.
The competence center’s strategy is to establish links between mechanical performance, microstructures and the parameters of processes. The analysis of scale effects on the behavior of materials and structures is central to the strategy. Our activities are therefore directed increasingly to production, to the characterization of industrial demonstrators and to the development of simulation and modeling tools.
- Deploy the industrial use of additive manufacturing processes for critical applications (primary aeronautical and spatial parts) through the understanding, mastering and reliability of the properties of materials inherited from the process parameters. The deployment involves establishing design rules and the development of in-situ control methods.
- New forging/die forging thermomechanical routes for very high added-value parts: optimized thermomechanical cycles, wide use of recycled raw materials, hybridation of processes (coupling forging and additive manufacturing).
- Development of repair and functionalization processes for very high added-value parts.
- Metallurgy of alloys transformed by special processes.
- Impact of process parameters on materials physical properties.
- Impact of the geometry on the physical properties (scale effect).
- Phases transformations induced by thermomechanical processes: analysis and quantification of phases in presence, morphological and crystallographic textures, etc.
- Focus on the metallurgy of surfaces and interfaces.
- Optimized heat treatments with respect to targeted physical and mechanical properties (static properties, damage tolerance, fatigue and cracks propagation resistance, resistance to corrosion and oxidation).
- Materials mechanical properties: quasi-static tests, fatigue and cracks propagation resistance, toughness, at room and high temperature.
- Link of materials properties with the microstructure of materials (and process parameters).
- Mechanical behavior laws of materials and structures.
- Modeling of thermomechanical behavior and failure modes.
- Defects databases associated with process parameters.
- Effect of defects on mechanical properties and failure modes: definition of acceptability criteria.
- Ageing: stability of microstructures and properties over time due to thermomechanical stress.
- Use and development of simulation tools for special processes (forging and additive manufacturing) using data from process monitoring systems.
- Simulation of thermomechanical histories.
- Thermomechanical models of materials and structures (to be implemented in design office).
Head of Metallic Materials & Processes Competence Center
- Technology monitoring, state of the art of processes and metallic alloys.
- Development of emerging processes.
- Design rules associated with emerging processes.
- Test benches with instruments and platforms.
- Optimized process parameters and manufacturing routes (hot work, functionalization, repairs, heat treatment).
- Databases on the properties of materials integrating parameters of elaboration and post-treatments.
- Materials and structures behavior laws, thermomechanical models, failure modes.
- Support in the definition of default acceptability criteria.
- 1:1 or reduced scale demonstrators, proofs of concept.
- Thermomechanical ageing databases and associated mechanisms.
- Supports for transferring results: training, themed workshops, conferences, scientific publications.
- Metallurgy and mechanical expertise.
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