Effect of stress relief annealing temperature and atmosphere on the microstructure and magnetic properties of non-oriented electrical steels

2016 ◽  
Author(s):  
June-Soo Park ◽  
Jong-Tae Park
Keyword(s):  
Magnetic Properties ◽  
Annealing Temperature ◽  
Stress Relief ◽  
Electrical Steels ◽  
Microstructure And Magnetic Properties

Effects of Lanthanum and Boron on the Microstructure and Magnetic Properties of Non-oriented Electrical Steels

2014 ◽  
Vol 33 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Yong Wan ◽  
Wei-qing Chen ◽  
Shao-jie Wu
Keyword(s):  
Magnetic Properties ◽  
Core Loss ◽  
Inclusion Size ◽  
Fiber Texture ◽  
The Other ◽  
Magnetic Flux Density ◽  
Boron Steel ◽  
Final Annealing ◽  
Electrical Steels ◽  
Microstructure And Magnetic Properties

AbstractThe effects of lanthanum and boron on the inclusion size distribution, microstructure, texture and magnetic properties of three non-oriented electrical steels have been studied. After final annealing, lanthanum effectively inhibited the precipitation of MnS precipitates and promoted the growth of grains, an addition of 0.0041 wt.% boron led to the precipitation of Fe2B particles and inhibited grain growth. On the other hand, steel containing 0.0055 wt.% lanthanum had the strongest {100} and {111} fiber texture and the weakest {112}〈110〉 texture among the steels. Compared to steel without lanthanum and boron, steel with 0.0050 wt.% lanthanum and 0.0041 wt.% boron obtained slightly stronger intensities of {100} and {111} fiber texture, and a little weaker intensity of {112}〈110〉 texture. Steel containing 0.0055 wt.% lanthanum achieved the best magnetic properties, whose core loss and magnetic flux density were 4.268 W/kg and 1.768 T, respectively.

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