Phase transformations in Au-Fe melt spun alloys

被引：6

作者：

Bosco, E ^{[1
]}

Rizzi, P ^{[1
]}

Baricco, M ^{[1
]}

机构：

[1] Univ Turin, INSTM, INFM, Dipartimento Chim IFM, I-10125 Turin, Italy

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 375卷

关键词：

Au-Fe; rapid solidification; discontinuous precipitation;

D O I：

10.1016/j.msea.2003.10.048

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Supersaturated Au80Fe20 and Au70Fe30 solid solutions have been obtained by melt spinning. Heat treatments of as-quenched ribbons in the temperature range between 320 and 550degreesC induced the precipitation of a fcc Fe-rich phase. From structural and microstructural analysis of precipitates and residual matrix, a discontinuous (cellular) transformation mechanism has been observed. Calculated driving forces for nucleation of bcc and fcc phases suggest a critical role of defect concentration on observed phase transformations. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：468 / 472

页数：5

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