The microstructure of Au-doped NiAl-Cr(Mo) eutectic and its mechanical

被引:2
|
作者
Huai, KW
Guo, JT [1 ]
Gao, Q
Yang, R
机构
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
[2] Dalian Univ Technol, Dept Mat Engn, Dalian 116024, Peoples R China
关键词
NiAl-28Cr-6Mo; Au; microstructure; compressive properties;
D O I
10.1016/j.matlet.2005.05.061
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of various gold content on the microstructure and compressive behavior of NiAl-28Cr-6Mo eutectic alloy has been investigated by using a combination of SEM, XRD, TEM and compression tests. It is concluded that the addition with less than 0.5% Au causes the changed microstructure of the eutectic alloys, which includes the lamellar refinement, fragment of Cr(Mo) phase, disappearance of Cr(Mo) phase' radial orientation in cell interior, while 1% An addition makes the alloy severely deviate from eutectic composition and formed new phase alpha-AlAu2. The high-temperature compressive properties have been significant affected due to the changed microstructure, while the room temperature compressive properties have not attained distinct change. (C) 2005 Elsevier B.V. All rights reserved.
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页码:3291 / 3294
页数:4
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