冷延鋼板の再結晶挙動に及ぼす炭化物, 窒化物の影響

概要

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To clarify the effect of carbides and nitrides on the formation of recrystallization texture in low carbon steel sheets, the changes in recovery, recrystallization and grain growth processes during isochronal annealing have been investigated from the view point of crystallographic orientation dependency, using commercial Al-killed steel, Ti-stabilized steel, rimmed steel, and vacuum-melted 0.02% C-Fe alloy as materials. The formation of the proper recrystallization texture in Al-killed steel may be explained by the crystallographic orientation dependency of recrystallization rate, which is originated from the retardation of recovery due to the precipitation of AIN. In rimmed steel, the treatment resulted in structures with fine cementite dispersion before cold rolling causes the crystallographic orientation dependency of grain size distribution just after primary recrystallization, and the recrystallization texture is developed by the preferential growth of {111} grains during the normal grain growth. In Ti-stabilized steel, the behavior is more complicated but it might be affected by the precipitation of TiC.
社団法人日本鉄鋼協会の論文
1972-10-01