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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Effect of Coiling and Hot-Band Annealing on the Microstructure of Cold-Rolled Non-Oriented Electrical Steel Containing Copper
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 191-196)
Author(s): Hui-jie Cui, University of Science and Technology Beijing, Beijing 100083, China
Yan-ping Zeng, University of Science and Technology Beijing, Beijing 100083, China
Hai-lin Chen, University of Science and Technology Beijing, Beijing 100083, China
You-guo Li, Tsinghua University, Beijing 100084, China
Abstract: In order to improve the magnetic properties, copper was add to cold-rolled non-oriented electrical steel. After coiling and hot-band annealing, the grain sizes and precipitates in hot-rolled bands of the non-oriented electrical steel containing Cu were quantitatively studied. The results showed that the grain sizes of hot-rolled bands are 20~25μm. Grains did not grow obviously as increasing of coiling time. But grains grew markedly after hot-band annealing and their average sizes are larger than 120μm. Hence, hot-band annealing is necessary to obtain large hot-rolled band grain after coiling. Some particles precipitated in coiling and hot-band annealing process. They are mainly AlN.
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