フェライト域熱延-焼鈍鋼板の深絞り性に及ぼす圧延温度および固溶炭素の影響

概要

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The effects of the solute carbon content during hot rolling and the hot rolling temperature in ferrite region on the recrystallization texture and Lankford value of extra low carbon sheet steels were studied. The conclusions are as follows : 1) With the addition of Ti or Nb effective in raising the recrystallization temperature of the extra low carbon steel, the hot rolled texture becomes nealy the same as the cold rolled one even though the rolling temperature is 700〜800℃. The effects of the hot rolling temperature in ferrite region on the hot rolled and hot rolled-annealed textures of interstitial free steel seet are small. 2) Solute carbon content during hot rolling is one of the most important factors that affect the recrystallization texture. When decreased the solute carbon content during hot rolling by carbide (TiC, NbC) precipitation, recrystallization texture of 15541 <225> orientation is developed after annealing. That is nealy the same as the cold rolled and annealed texture. The γ value of 1.9 was obtained by hot rolling with lubrication using solute carbon free steel.
社団法人日本鉄鋼協会の論文
1988-08-01