日本金属学会誌

J. Japan Inst. Metals, Vol. 55, No. 11 (1991),
pp. 1167-1173

Configuration of Primary Grains Resistant to Consumption by Secondary Goss Grains

Yukio Inokuti1 and Fumio Saito2

1Iron and Steel Laboratories, Kawasaki Steel Corp., Chiba
2Kawasaki Steel Systems R & D Corp., Chiba

Abstract:

Computer color mapping for the primary grains near the growing front of secondary Goss-oriented grain in 3%Si steel was performed with an image analyzer using crystallographic orientation data measured by a Kossel examination.
The results are summarized as follows:
(1) Primary grains of 100< 001>~<0\ kl> are virtually unconsumed by the secondary Goss grain. Its result is consistent with the results of the previous experiments.
(2) The alternate configuration of primary grains having two equivalent orientations of near (342) [\bar430] and (342) [4\bar30] grains is also virtually unconsumed by the secondary Goss grain.
(3) The primary grains mentioned in (1) and (2) are formed during the decarburization and primary recrystallization treatment from the same deformed grains after cold rolling.
(4) The above-mentioned primary grains, which are unconsumed by the secondary Goss grain, have highly oriented crystallographic planes, but their axes deviate from each other.


(Received 1991/5/20)

Keywords:

silicon steel, Kossel technique, computer color mapping, image analyser, secondary Goss grain, primary grain, secondaty recrystallization, growing front


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