Activity Model of Fe��Si��B Ternary Metallic Melts

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Abstract According to the ion and molecule coexistence theory, the activity model of Fe��Si��B ternary system was established, and the influence of ratio xSi/xFe, boron content and temperature, etc�� on the activity of the melt compound was investigated. The results show that the FeB activity is high in the liquid iron, when xSi/xFe is 0��5; the activity of boron increases with increasing the boron content for different contents of xFe and xSi, and the activity of boron at the ratio xFe=0��4 is about one order of magnitude higher than that for the xFe=0��8; The activities of the melt compound were also affected by temperature, but the influencing extent was little. The equal activity diagrams of silicon and boron were drawn for the first time according to the model results.

Key words�� activity metallic melt ion and molecule coexistence model equal activity diagram

Received: 09 June 2010 Published: 15 June 2011

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	DIAO Ding-Guo
	GUO Pei-Min
	DIAO Pei

Cite this article:

DIAO Ding-Guo,GUO Pei-Min,DIAO Pei. Activity Model of Fe��Si��B Ternary Metallic Melts[J]. Chinese Journal of Iron and Steel, 2011, 18(6): 16-21.

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http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/ OR http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/Y2011/V18/I6/16