Cu 添加低炭素鋼板の {111} 方位粒形成(一次再結晶と集合組織)(<特集>再結晶・粒成長)

概要

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A study has been made of the development of {111} grains through the annealing at slow heating in 1%Cu-bearing steels with two carbon levels, 0.04% and 0.002%. At the early stage of recrystallization, Cu precipitates of the 0.002%C steel disperse very finely compared with that of 0.04%C steel. These very fine precipitates of 0.002%C steel strongly inhibit the recrystallization of both {111} and {001} grains, resulting in the development of weak textures in sheet. Comparatively coarse precipitates of 0.04%C steel will allow the {111} grains to recrystallize easily, and recrystallized {111} grains grow into unrecrystallized {001} grains at the later stage of recrystallization, finally the strong {111} texture is developed in sheet. Such a difference in recrystallization behavior in Cu-bearing steel should be attributed to the dispersion size of Cu precipitates due to carbon content.
社団法人日本鉄鋼協会の論文
1984-11-01