ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
Regular Article
Effects of Two-step Annealing on Texture and Magnetic Properties by Addition of Co, Mo, or Ni in Silicon Steel
Yan Bo CaiSam Kyu Chang
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2007 Volume 47 Issue 11 Pages 1680-1686

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Abstract

In 3Si–1.4Al electrical steel with addition of Co, Mo or Ni, the texture of hot bands is almost random except γ fiber which is dominant. After cold reduction, the texture shows the typical (111)//ND and (110)//RD fibers. When cold rolled sheets are annealed, it is clear that γ fiber of {111}‹110› and {111}‹112› decreases significantly, while, on the contrary, Goss texture increases but cube texture is not changed. Two-step annealing process was observed to be effective to increase grain size and decrease γ fiber texture resulting in lowering iron loss and its anisotropy. The combination of increasing grain size and decreasing γ texture by two-step annealing was able to improve magnetic properties.

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© 2007 by The Iron and Steel Institute of Japan
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