Effect of Titanium on Metallurgical and Mechanical Properties of Controlled Rolled Steels
-
- MATSUMOTO Kazuaki
- Keihin Research Laboratories, Steel Research Center, Nippon Kokan K. K.
-
- TSUKADA Koshiro
- Research Administration Dept. Nippon Kokan K. K.
-
- YAMAMOTO Sadahiro
- Fukuyama Research Laboratories, Steel Research Center, Nippon Kokan K. K.
-
- OUCHI Chiaki
- Advanced Technology Research Center, Nippon Kokan K. K.
Bibliographic Information
- Other Title
-
- 制御圧延鋼におけるTi添加の冶金的効果と機械的性質に及ぼす影響
- セイギョ アツエン コウ ニ オケル Ti テンカ ノ ヤキンテキ コウカ ト
Search this article
Abstract
The effects of titanium on metallurgical and mechanical properties of controlled rolled steels areinvestigated and compared with those of niobium. Large TiN particles, existing in high titanium content steels, have little ability to control austenite grain growth in slab reheating. In steels with micro amounts of titanium, finer austenite grain size is observed in slab reheating at high temperatures of above 1 200°C. Controlled rolled titanium steels have high strength and excellent toughness, because titanium, similarly to niobium, strongly retards recrystallization of austenite, and strengthens steel by precipitation of TiC. TiN with very low solubility hardly dissolves at all in slab reheating, and resultantly does not contribute to the strength of the steel. Therefore, an effective titanium content, which is defined by (Total Ti-3.4N), is useful for designing steels. Strengthening by 3 kgf/mm2 in tensile strength per 0.01% effective titanium was observed. Strengthening due to grain refinement and that by precipitation of TiC are almost equal in a 0.1% titanium steel. The value of vEs of 0.003%S-Ti steel with 60 kgf/mm2 in the tensile strength is higher than that of Nb-V steel by about 2 kgf-m, due to sulfide shape control effect by titanium.
Journal
-
- Tetsu-to-Hagane
-
Tetsu-to-Hagane 74 (1), 107-114, 1988
The Iron and Steel Institute of Japan
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001205151002752
-
- NII Article ID
- 110001492125
-
- NII Book ID
- AN00151251
-
- ISSN
- 18832954
- 00211575
-
- NDL BIB ID
- 3157869
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed