薛正良, 齐江华, 赵栋楠, et al. Thermodynamics of Deoxidization of Pipeline Steel Based on Technology of Oxide Metallurgy[J]. Special Steel, 2007, 28(4): 4-6.DOI:
The optimum conditions of molten steel to precipitate Ti
2
O
3
inclusion in solid-liquid dual phase region during solidification are obtained by study on thermodynamics of deoxidization of pipeline steel X100 (0. 03 ~0. 05C
1.70 ~ 1. 90Mn
0. 15 ~0. 25Si
≤0. 001S
≤0. 002P) during solidification. The results showed that control of titanium content in molten steel ≤0. 01%
aluminum content ≤0. 002%
oxygen content ≤0. 001% and nitrogen content ≤0. 004% were key factors to promote precipitation of fine Ti
2
O
3
particles at front of solidification in solid-liquid dual phase region of pipeline steel X100.