Behavior of Inclusions in Process of Solid Growth During Solidification of Fe-0��15C-0��8Mn Steel

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Abstract The behavior of inclusions in the process of ��-phase growth during the solidification of Fe-0��15C-0��8Mn steel was in-situ observed using a high-temperature confocal scanning laser microscope (HTCSLM). The results show that inclusions arrive the S/L (solid/liquid) interface by way of direct impact or gradual drift, when the cell spacing is approximately equal to 177 ��m during the growth of cellular ��-phase. The inclusions easily stay at the positions of trailing vortex formed by the circumferential motion of molten steel around ��-phase. Some inclusions reaching the S/L interface are captured by the solid-phase. Some of them move along the normal direction of the S/L interface because of pushing of solid-phase, and the others get away from the S/L interface after being pushed for a distance. The faster the growth rates of the solid-phase are, the easier the inclusions are captured by the S/L interface. The slower the growth rates of the solid-phase are, the easier the inclusions move with the S/L interface.

Key words�� inclusion in situ observation carbon steel solidification process behavior

Received: 24 March 2011 Published: 29 May 2012

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	Articles by authors
	CHEN Shu-Yang
	YUE Xu-Dong
	JIN Guang-Can
	LI Jing-Chun
	CHANG Guo-Wei

Cite this article:

CHEN Shu-Yang,YUE Xu-Dong,JIN Guang-Can��. Behavior of Inclusions in Process of Solid Growth During Solidification of Fe-0��15C-0��8Mn Steel[J]. Chinese Journal of Iron and Steel, 2012, 19(5): 17-22.

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http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/ OR http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/Y2012/V19/I5/17