一方向性電磁鋼板の二次再結晶に及ぼすすず添加および冷間圧延時の時効条件の影響

概要

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A study was made on the effect of the inter-pass aging during cold rolling on the secondary recrystallization of the grain-oriented electrical steel with Sn produced by the single-stage cold rolling process. The following conclusions were obtained. (1) The specimen without Sn yields a perfect secondary recrystallization structure in case of no inter-pass aging and 200℃ inter-pass aging, but no secondary recrystallization in case of 300℃ inter-pass aging. This failure of secondary recrystallization is attributed to the smallest amount of the product of {110} and {111} densities in the primary texture, that is, the smallest opportunity of meeting for Goss nuclei with easily consumable grains by them. The specimen with Sn yields a perfect secondary recrystallization structure in all cases of the inter-pass aging mentioned above. This is attributed to the small size of primary grains, the large amount of the product of {110} and {111} densities in the primary texture, and the large amount of effective inhibitors. (2) The core loss of the specimen with Sn cold rolled with the inter-pass aging is very small because of the high magnetic flux density and the small size of secondary grains.
社団法人日本鉄鋼協会の論文
1993-10-01