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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Electrical Steels
Presentation Title The Role of Temper Rolling and Annealing on the Magnetic Property Improvement of a Low Si Non-oriented Electrical Steel
Author(s) Youliang He, Tihe Zhou, Haden Lee, Chad Cathcart, Peter Badgley
On-Site Speaker (Planned) Youliang He
Abstract Scope Temper rolling and the following annealing have a considerable effect on the magnetic properties of electrical steel. In this study, a low Si non-oriented electrical steel was hot rolled, cold rolled and batch annealed to produce 0.5-mm-thick sheets. Temper rolling (5~8% reduction) was then applied to the annealed sheets which were annealed again at different temperatures (500 to 900 °C) for a fixed annealing time (2 h) or at a fixed temperature (800 °C) for different times (0.5 - 24 h). It was found that temper rolling and annealing could significantly improve the magnetic properties, i.e., decreasing the core loss by up to ~22% and increasing the relative permeability by up to 68% at 1.5 T and 60 Hz, as compared to that without temper rolling. The improvement of magnetic properties was correlated to the changes in microstructure and texture induced during the temper rolling and final annealing processes.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A new approach to optimise the microstructure of non-oriented Electrical Steel sheets
Constitutive Modelling of High-temperature Flow Behavior of a Non-oriented Electrical Steel with 3.2 wt% Si
Effect of cold rolling reduction rate and rare earth yttrium on microstructure and texture of oriented silicon steel
Effect of melt superheat on microstructure and texture of non-oriented electrical steel sheet produced by the ultra-thin strip casting
Effect of Natural Deposited Films on Interfacial Heat Transfer during Sub-rapid Solidification of Non-oriented Electrical Steel
Effect of Rare Earth Yttrium on inclusion and texture of oriented silicon steel
Effects of normalization process on microstructure and texture of non-oriented electrical steel produced by ultra-thin strip casting
Microstructure and texture evolution of high grade non-oriented electrical steel for new energy vehicles during hot rolling
Report on some recent progress on the understanding of the Goss texture in Fe-3 % Si grain oriented electrical steels
Simulation of Solidification Structure of 3 % Oriented Silicon Steel by Twin Roll Strip Casting
The processing and application of Fe-6.5%Si ribbons and flakes
The Role of Temper Rolling and Annealing on the Magnetic Property Improvement of a Low Si Non-oriented Electrical Steel

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