THE PURIFICATION AND HYPERCOOLING OF Fe-B EUTECTIC ALLOY

Acta Metall Sin

2008, Vol. 44

Issue (8): 956-960 DOI:

Research Articles

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THE PURIFICATION AND HYPERCOOLING OF Fe-B EUTECTIC ALLOY

西北工业大学凝固技术国家重点实验室

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. THE PURIFICATION AND HYPERCOOLING OF Fe-B EUTECTIC ALLOY. Acta Metall Sin, 2008, 44(8): 956-960 .

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Abstract Adopting the molten glass denucleating technology combined with high frequency vacuum melting, and cycle superheating, the main factors affecting purifying of the bulk Fe-rich side Fe-B eutectic alloy melt were investigated. The optimized purification and parameters for high undercooling and hypercooling were given out. The hypercoolings of 324K～460K have been obtained successfully in bulk Fe83B17 eutectic alloy melts, and 485K in Fe80B20 hypereutectic alloy melts. So the primary nucleation undercoolings of (0.3～0.4) Tm were obtained in bulk Fe-B eutectic system alloy melts. The thermodynamic characters of hypercooling rapid solidification were also discussed by analyzing the cooling curves.

Key words: Glass purifying hypercooling undercooling Fe-B eutectic alloy

Received: 29 November 2007

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I8/956

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