珪素鋼の熱間圧延板の集合組織

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It was reported that the texture of the hot-rolled band of mild steel closely resembled the coldrolling texture. On the other hand, a strong {112}<110> component was reported to be found in the hot-rolling texture of silicon iron recently. This investigation concerns with explanations of the gaps between above both results. The silicon iron bands 2.5mm thick were prepared by rolling to reductions of 40 and 60 pct at 700°, 800°, 900°, and 1000℃. X-ray examinations were made at (a) the surface and (b) the middle part of thickness to determine the textures. (110) pole figures were constructed by Schulz's reflection method. (a) Surface : The texture was a broad (110)[001]. (b) Middle part of thickness : The texture was a cold-rolling type when rolling temperature was low, while a sharp {112}<110> component was obtained when rolling temperature was high. The transition point between these two types of texture was 900℃. As the results, the difference of the texture was proved to depend on the variations of rolling conditions. Two kinds of the hot-rolled band of titanium-bearing silicon iron which had both type of textures were cold-rolled and finished to grain-oriented electrical sheets. And (110)[001] secondary recrystallization texture was given in the strips irrespective of the textures of hot-rolled bands. This shows that the development of the (110)[001] secondary recrystallization texture is independent of hot-rolling texture as far as the sheets are rolled under the above rolling condition.
社団法人日本鉄鋼協会の論文
1966-08-01

著者

松岡孝
住友金属工業(株)中央技術研究所

珪素鋼の熱間圧延板の集合組織

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