ABOUT THE AL-CU-FE ICOSAHEDRAL PHASE FORMATION

被引：112

作者：

FAUDOT, F

QUIVY, A

CALVAYRAC, Y

GRATIAS, D

HARMELIN, M

机构：

[1] CNRS-CECM, Cedex, 15, rue G. Urbain

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 133卷

关键词：

D O I：

10.1016/0921-5093(91)90093-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, results obtained by differential thermal analysis (DTA) and X-ray diffraction (XRD) confirm [5, 8] that the icosahedral phase (i-phase) is formed by a peritectic reaction. A single i-phase can be obtained after annealing around the compositions Al64Cu24Fe12-Al61.75Cu25.5Fe12.75. For the composition Al62Cu25.5Fe12.5, the XRD lines of the i-phase are narrow whatever the annealing temperature (800-degrees-C or 600-degrees-C). Thus, this result establishes that there exists a single phase domain where the i-phase is perfect (without phasons) and remains stable at 600-degrees-C. A provisional vertical section along the line Al70Cu20Fe10-Al64Cu24Fe12-Al58Cu28Fe14 is proposed and shows the phases that exist in equilibrium at various temperatures in this range of compositions.

引用

页码：383 / 387

页数：5

共 15 条

[1] THE STRUCTURE OF FEAL3 .1. [J].