High-strength electro-technical steels for electric vehicles and hybrid motors
Overview
Objectives:
The project is focused on the microstructural design of high-strength electrical steels for hybrid motors and electric vehicles.
Within the project the original concept of high-strength electrical steel based on composite gradient microstructure substructure and texture through the sheet thickness arrangement, will be designed.
The central part is characterized by coarse-grained microstructure with high intensity cubic texture component reinforced by coherent Cu precipitates and solid solution, characterized by excellent electromagnetic parameters. Subsurface area will consist of fine-grained microstructure reinforced by incoherent AlN precipitates and solid solution of Si, Al, Cu in the ferrite. This area is characterized by high strength characteristics and good resistance to fatigue rupture.
To achieve the selected composite system a sequence of structure creation will be designed and implemented.
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