Structure Transition Mechanism in Undercooled CuNi Alloys

Taking a Cu55Ni45 alloy as experimental alloy systems, we systematically studied the method of obtaining deep undercooling of alloy melt. Stable deep undercooling of alloy melt was obtained by the combination of molten glass purification and cyclic overheating. Combined with the nucleation and growt...

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Veröffentlicht in:	Journal of Wuhan University of Technology. Materials science edition 2021-12, Vol.36 (6), p.880-883
Hauptverfasser:	An, Hongen, Siambun, Nancy Julius, Chuab, Bih-Lii, Hong, Melvin Gan Jet, Li, Hongtao
Format:	Artikel
Sprache:	eng
Schlagworte:	Advanced Materials Alloy systems Alloys Chemistry and Materials Science Grain refinement Materials Science Materials Science, Multidisciplinary Nucleation Overheating Recrystallization Science & Technology Solidification Supercooling Technology
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Taking a Cu55Ni45 alloy as experimental alloy systems, we systematically studied the method of obtaining deep undercooling of alloy melt. Stable deep undercooling of alloy melt was obtained by the combination of molten glass purification and cyclic overheating. Combined with the nucleation and growth mechanism of undercooled melt, the microstructure evolution and grain refinement mechanism of the alloy were systematically studied in a wide undercooling range. The grain refinement solidification structure under large undercooling was analyzed by EBSD technology. Combined with the typical characteristics of recrystallization in metallographic pictures, it was finally confirmed that the grain refinement was caused by recrystallization.
ISSN:	1000-2413 1993-0437
DOI:	10.1007/s11595-021-2482-y