Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Formation of Cold-Rolled Texture and Recrystallized Texture in Single Crystals of 3% Silicon Iron
Part 1 Cold-Rolled Texture
Tadami TAOKAEi-ichi FURUBAYASHIShin TAKEUCHI
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JOURNAL FREE ACCESS

1968 Volume 54 Issue 2 Pages 162-190

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Abstract

Systematic studies were carried out on the formation of rolled textures in 3% Si-Fe single crystals with a number of preselected orientations. The rolled textures were determined by the X-ray pole figure method at successive stages of rolling, and the operating slip systems were determined by observation of slip bands on the rolling, side and front surfaces. Among all the crystals used, those in {100}‹011›, {111}‹211› and {112}‹110› orientations maintained their initial orientation almost unchanged during rolling, while the others changed their orientation towards any one or two of the three with increasing reduction by rolling.
To describe the results comprehensively, the crystals were classified into three, i.e., the first series consists of those crystals with a common {100} plane parallel to the rolling plane, the second series with a common ‹011› direction parallel to the transverse direction and the third series with a common ‹011› direction parallel to the rolling direction. In the first series, the crystals rotated around the normal of the rolling plane {001} towards the {001}‹110› orientation with increasing reduction. In the second series, the crystals oriented between {011}‹100› and {211}‹111› rotated around the transverse ‹011› direction towards {111}‹211› and those between {211}‹111› and {100}‹011› rotated towards {100}‹011›. While, all the crystals of the third series maintained their inital orientations almost unchanged during rolling.
The way by which the crystals change their orientations with reduction was semiquantitatively explained by geometrical considerations of the actually operating slip systems having large Schmid factors for compression and tension, taking account of change of their factors with rotation of the crystal. According to the geometrical calculation, the {211}‹011› orientation has been proved to be unconditionally stable for rolling, while the {100}‹011› and {111}‹211› orientations can not be stable unless some restrictions are imposed on the operation of slip systems.

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© The Iron and Steel Institute of Japan
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