Formation mechanism of anomalous eutectics in highly undercooled Ag-39.9 at%Cu alloys

被引：2

作者：

Zhao, Su ^{[1
]}

Li, Jin-Fu ^{[1
]}

Liu, Li ^{[1
]}

Zhou, Yao-He ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

CHINESE PHYSICS B | 2009年 / 18卷 / 05期

基金：

中国国家自然科学基金;

关键词：

rapid solidification; undercooling; Ag-Cu eutectic alloy; anomalous eutecitcs; RAPID SOLIDIFICATION; AG-CU; CO-SB; NI-SI; SN; GROWTH; MELTS; EVOLUTION; BEHAVIOR;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper investigates the solidification behaviour of the Ag-Cu eutectic alloy melt undercooled up to 100 K. It is revealed that lamellar eutectics grow in a dendritic form in the Ag-Cu eutectic melt with undercooling equal to or greater than 76 K. As undercooling increases, the remelted fraction of the primary eutectics during recalescence rises. The severe remelting and the subsequent ripening of the primary eutectic dendrites lead to the formation of anomalous eutectics.

引用

页码：1917 / 1922

页数：6

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