Deformation characteristics of quasicrystalline Al-Cu-Fe alloys

被引：10
|
作者：
Shield, JE [1 ]
Kramer, MJ [1 ]
机构：
[1] US DOE,AMES LAB,AMES,IA 50011
来源：
JOURNAL OF MATERIALS RESEARCH | 1997年 / 12卷 / 08期
关键词：
D O I：
10.1557/JMR.1997.0274
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The deformation characteristics of icosahedral Al-Cu-Fe quasicrystals were determined by high temperature creep experiments between 680 and 720 degrees C and 15 and 41 MPa. The deformation process was determined to be controlled by grain boundary mechanisms. Both the stress and grain size sensitivity exponents were found to be 2, suggesting that grain boundary sliding was the rate-controlling deformation mechanism. Microstructural analysis supported this conclusion, as no intragranular defects were produced during the deformation experiments.
引用
收藏
页码：2043 / 2047
页数：5
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