Precipitation and recrystallization behavior in extra low carbon steels

被引:31
|
作者
Choi, JY
Seong, BS
Baik, SC
Lee, HC
机构
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul, South Korea
[2] Korea Atom Energy Res Inst, Neutron Phys Dept, Yusong 305600, Daejon, South Korea
[3] POSCO, Tech Res Lab, Pohang 790785, South Korea
关键词
T-containing extra low carbon steel; recrystallization temperature; TiC precipitates; SANS;
D O I
10.2355/isijinternational.42.889
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Effects of precipitation on the recrystallization behavior of two Ti-added extra low carbon sheet steels were compared. The recrystallization temperature of the higher T-containing steel is higher than that of the lower T-containing steel. Small Angle Neutron Scattering (SANS) technique revealed no additional carbonitrides precipitation during the recrystallization annealing procedure in the low Ti-containing steel. However, in higher Ti-containing steel, new TiC precipitates, with a size range of several nm to several tens of nms, form during the recrystallization annealing process. This dynamic interaction of the precipitation of fine TiC particles with the recovery of dislocations seems the primary source of the retardation of the recrystallization in the higher Ti-containing extra low carbon steel.
引用
收藏
页码:889 / 893
页数:5
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