Magnetic losses reduction in grain oriented silicon steel by pulse and continuous fiber laser processing
Source abstract
Abstract
The present paper shows the impact of different laser scribing conditions on possible reduction of magnetic losses in grain oriented electrical steel sheets. The experimental Fe-3%Si steel was taken from industrial line after final box annealing. The surface of investigated steel was subjected to fiber laser processing using both pulse and continuous scribing regimes in order to generate residual thermal stresses inducing the magnetic domains structure refinement. The magnetic losses of experimental samples before and after individual laser scribing regimes were tested in AC magnetic field with 50Hz frequency and induction of 1.5T. The most significant magnetic losses reduction of 38% was obtained at optimized conditions of continuous laser scribing regime. A semi quantitative relationship has been found between the domain patterns and the used fiber laser processing.
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Research context
OpenAlex topics: Magnetic Properties and Applications · Microstructure and Mechanical Properties of Steels · Non-Destructive Testing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Division of Metals Systems, Institute of Materials Research 1 , Watsonova 47, 040 01 Košice, Slovakia
Institute of Physics, Faculty of Science, P.J. Safarik University 2 , Park Angelinum 9, 041 54 Košice, Slovakia
Funding
European Cooperation in Science and Technology · Vedecká Grantová Agentúra MŠVVaŠ SR a SAV · Agentúra na Podporu Výskumu a Vývoja
References (15)
Show source-provided references
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