冷延鋼板の圧延変形中における転位すべり挙動の解析と再結晶集合組織

概要

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A twisted region was thought to be an origin of recrystallized grains having a preferred orientation. Stable crystal orientations of the twisted region were mathematically analyzed by assuming that the twisted region was formed by blocking of a dislocation slip system during cold-rolling. In the mathematical treatment, <111> pencil glide system was assumed and cold-rolling deformation was characterized by a plane strain (-dε, dε, 0) model. There are two stable crystal orientation families of twisted region ; (1) crystal orientation around near (R.D.→N.D.)-60°//<110> axis from {11, 11, 8}<4, 4, 11> to {211}<011>, (2) crystal orientation around near (R.D.→T.D.)-11.5°//<110> axis from {001}, <110> 11.5° to the orientation rotated by 35 degrees. These crystal orientations of twisted region coincide with those of experimentally obtained recrystallization textures.
社団法人日本鉄鋼協会の論文
1986-07-01