首页|Understanding thermal compression and deformation behavior of 3.15 wt.%Si non-oriented electrical steels prepared by sub-rapid solidification

Understanding thermal compression and deformation behavior of 3.15 wt.%Si non-oriented electrical steels prepared by sub-rapid solidification

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Sub-rapid solidification has the potential to enhance the columnar structure and the magnetic property of electrical steels.However,research on the hot deformation behavior of sub-rapid solidified non-oriented electrical steel,particularly at varying strain rates,has yet to be fully understood.The effect of thermal compression on the microstructure and mechanical properties of 3.15 wt.%Si non-oriented electrical steel strips produced through a strip casting simulator was systematically investigated.The findings reveal that increasing the deformation temperature enhances grain recrystal-lization,while the peak stress decreases with higher temperature.Furthermore,a lower strain rate favors dynamic recrystallization and reduces thermal stress.It can be seen that sub-rapid solidification can effectively reduce the thermal activation energy of non-oriented electrical steel,and the thermal activation energy is calculated to be 204.411 kJ/mol.In addition,the kinetic models for the dynamic recrystallization volume fraction of the studied 3.15 wt.%Si non-oriented electrical steel were established.

Non-oriented electrical steelHot thermal compressionRecrystallizationSub-rapid solidification

Hui-hui Wang、Wan-lin Wang、Hua-long Li、Sheng-jie Wu、Pei-sheng Lyu、Bao-jun Zhao、Chen-yang Zhu

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School of Metallurgy and Environment,Central South University,Changsha 410083,Hunan,China

Institute of Research of Iron&Steel,Sha-Steel Co.,Ltd.,Suzhou 215625,Jiangsu,China

Faculty of Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China

Sustainable Minerals Institute,The University of Queensland,Brisbane 4072,Queensland,Australia

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province,ChinaNational Key Research and Development Program of China

52130408522043562023JJ407622021YFB3702401

2024

钢铁研究学报(英文版)
钢铁研究总院

钢铁研究学报(英文版)

CSTPCD
影响因子:0.584
ISSN:1006-706X
年,卷(期):2024.31(9)