冷延低炭素鋼板の再結晶に及ぼすVおよびN添加の影響
1972 年 58 巻 12 号 p. 1612-1622
詳細
1972 年 58 巻 12 号 p. 1612-1622
Recrystallization of cold rolled steels with approximately 0-02wt% nitrogen and with vanadium is to a large extent affected by the variation of vanadium content. When the ratio of vanadium content (Cv) to nitrogen content (CN) is approximately 1, that is CV (a/o)/CN (a/o)≈1, recrystallization is much retarded; in the strip annealed for 3 hours at 750°C, unrecrystallized parts are found under an electron microscope. The annealing texture shows high concentrations around the (100) and (112) poles, and is rather similar to a cold rolling one. The steels have small grains, high yield points, and small elongations.
When Cv/CN=10, the recrystallization of steels occurs more easily than that of the steels containing vanadium at the ratio of about Cv/CN, ≈1. The annealing texture is composed mainly of {111}‹110›+ {111}‹112› orientations.
Similar but small effects are also observed by vanadium addition in the steels with approximately 0-002% nitrogen.
