한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
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- Pages.262-271
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- 1999
Ti과 Nb에 의한 HSS 작업롤재의 미세조직 제어
Microstructural Control of High Speed Steel Roll Material with Titanium and Niobium
초록
This work was intended to modify the solidification structure of high speed steel roll material for hot strip mill, by the introduction of alloying elements designed to form primary carbide dispersions via melt treatment procedure. Solidification structure was modified by the melt treatment with titanium and distribution. This modifying effect could be attributed to the fact that the nuclie formed at high temperature upon inoculation induce the formation of fine equiaxed grain and primary carbide during solification, which is also likely to be responsible for the fact that TiC acts as effective nuclie for primary VC solidification.