Effect of hot band annealing on microstructure, texture and magnetic properties of non-oriented electrical steel processed by twin-roll strip casting

2018 ◽  
Vol 460 ◽  
pp. 41-53 ◽  
Author(s):  
Yu-Qian Wang ◽  
Xiao-Ming Zhang ◽  
Guo-Qing Zu ◽  
Yi Guan ◽  
Guang-Fa Ji ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Electrical Steel ◽  
Strip Casting ◽  
Hot Band ◽  
Twin Roll

Experimental Study on the Twin Roll Strip Casting and Warm Rolling Fe-6.5 wt. %Si Steel Sheet

2013 ◽  
Vol 873 ◽  
pp. 48-53 ◽  
Author(s):  
Feng Quan Zhang ◽  
Zhen Yu Liu ◽  
Zhong Han Luo ◽  
Guang Ming Cao
Keyword(s):  
Magnetic Properties ◽  
Steel Sheet ◽  
Texture Evolution ◽  
Magnetic Measurement ◽  
Research Work ◽  
Rolling Direction ◽  
Warm Rolling ◽  
Fiber Texture ◽  
Strip Casting ◽  
Twin Roll

An Fe-6.5 wt. % Si steel sheet with a final thickness of 0.30 mm was produced by twin roll strip casting and warm rolling process. The effects of casting, warm rolling and annealing process on microstructure, texture and magnetic properties were investigated with optical microscopy, X-ray diffraction and magnetic measurement. The microstructure evolution during preparation was shown as follows: columnar grain and a small amount of fine grain in center (as casted) elongated grains and a small amount of the shear bands along the rolling direction (as rolled) a relatively uniform recrystallized microstructure (as annealed). The texture evolution during preparation was shown as follows: {001} λ fiber texture (as casted) the significant α fiber texture and the weak, inhomogenous γ fiber texture (as warm rolled) the strong {001} λ fiber texture and weak, inhomogenous γ fiber texture (as annealed). The excellent soft magnetic properties were obtained with a very small P1.0/400of 10.751 W/kg and a very high B50up to 1.438 T at optimum annealing condition (1150 °C for 1 h). The research work was useful to develop electrical steel by twin roll continuous casting process.

Effect of Hot Band Annealing on Microstructure of Semi-Processed Non-Oriented Low Carbon Electrical Steels

2009 ◽  
Vol 1243 ◽  
Author(s):  
Emmanuel J. Gutiérrez ◽  
Castañeda ◽  
Armando Salinas Rodriguez
Keyword(s):  
Magnetic Properties ◽  
Electrical Steel ◽  
Annealing Treatment ◽  
Processing Route ◽  
Attractive Alternative ◽  
Low Carbon ◽  
Production Scale ◽  
Final Annealing ◽  
Steel Strips ◽  
Hot Band

ABSTRACTEffects of hot band annealing on the final microstructure and magnetic properties of cold rolled and annealed non-oriented grain Si-Al electrical steel strips are investigated. Microstructures are characterized using optical and scanning electron microscopy and magnetic properties are determined using a vibrating sample magnetometer. It is shown that annealing of hot rolled bands at temperatures between 800 and 850 °C causes rapid decarburization and development of a microstructure consisting of large columnar ferrite grains free of secondary particles. This microstructure leads, after cold rolling and a fast annealing treatment, to large grain microstructures similar to those observed in production scale, fully processed strips. It is observed that the final grain size increases with the final annealing temperature, leading to a significant improvement of the magnetic properties. Therefore, hot band annealing technology can be an attractive alternative processing route for the manufacture of non-oriented grain low carbon Si-Al processed electrical steel strips.

High-permeability and thin-gauge non-oriented electrical steel through twin-roll strip casting

2017 ◽  
Vol 136 ◽  
pp. 23-33 ◽  
Author(s):  
Haitao Jiao ◽  
Yunbo Xu ◽  
Wei Xiong ◽  
Yuanxiang Zhang ◽  
Guangming Cao ◽  
...  
Keyword(s):  
Electrical Steel ◽  
Strip Casting ◽  
High Permeability ◽  
Twin Roll

Effects of warm temper rolling on microstructure, texture and magnetic properties of strip-casting 6.5wt% Si electrical steel

2014 ◽  
Vol 370 ◽  
pp. 6-12 ◽  
Author(s):  
Hao-Ze Li ◽  
Hai-Tao Liu ◽  
Yi Liu ◽  
Zhen-Yu Liu ◽  
Guang-Ming Cao ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Electrical Steel ◽  
Strip Casting ◽  
Temper Rolling
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