STRUCTURE TRANSFORMATIONS OF QUASI-CRYSTALLINE PHASES IN QUATERNARY ALLOYS

被引：0

作者：

PEREZ, R

JUAREZISLAS, JA

MARTINEZ, L

机构：

[1] Laboratorio de Cuernavaca, Instituto de Fisica Unam, 62191 Cuernavaca, Mor.

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 181卷

关键词：

D O I：

10.1016/0921-5093(94)90748-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report experimental results related to transformations of the quasicrystalline phases in alloys of Al-Cu-Co-Fe to crystalline structures. The alloys were fabricated by normal casting methods under inert gas atmospheres. Icosahedral and decagonal quasicrystalline phases were found to coexist. Annealing induces transformation from quasicrystalline to crystalline structures. Evidence of crystallization is clearly obtained from electron diffraction patterns along the two-fold axes. Low magnification dark field images suggest that twins are formed by the deformation mechanism associated with the transformation.

引用

页码：823 / 827

页数：5

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