Magnetic and microstructural characteristics of high-Si electrical steels produced by hot dipping and diffusion annealing
DOI:
https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1029Keywords:
Electrical steels, 6.5 % Si steels, Hot dipping, Diffusion annealingAbstract
Electrical steels with high silicon content (up to 6.5 wt % Si) are difficult to process by conventional metallurgical routes: ordering phenomena make the material too brittle to be cold rolled. A hot dipping and diffusion annealing process appears to be an alternative production route to obtain steel with a high silicon and aluminium content avoiding rolling problems. Surface alloying with silicon (Si) and aluminium (Al) is achieved on a conventional steel substrate by hot dipping in a hypereutectic Al-Si-bath followed by a diffusion annealing treatment. The diffusion annealing allows the homogenization of the composition obtaining a homogeneous concentration of 6.5 % Si over the thickness depending on the temperature and annealing time necessary for the diffusion of the elements present in the coating. Also, these elements can be distributed in a controlled non-uniform way over the thickness of the sheet.
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Published
2005-12-17
How to Cite
Ros-Yáñez, T., Alonso, C., Gamarra, M., Barros, J., & Houbaert, Y. (2005). Magnetic and microstructural characteristics of high-Si electrical steels produced by hot dipping and diffusion annealing. Revista De Metalurgia, 41(Extra), 222–226. https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1029
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