Microstructure evolution of TiAl matrix in the process of magnetron sputtering and hot isostatic pressing for fabricating TiAl/SiCf composites

被引：10
|
作者：
Zhang, W. [1 ]
Yang, Y. Q. [1 ]
Zhao, G. M. [1 ]
Huang, B. [1 ]
Li, M. H. [1 ]
Luo, X. [1 ]
Ouyang, S. [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
INTERMETALLICS | 2013年 / 39卷
关键词：
Composites; Titanium aluminides; based on TiAl; Microstructure; Diffraction; Electron microscopy; transmission; INTERFACIAL REACTION;
D O I：
10.1016/j.intermet.2013.03.010
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The microstructures of titanium aluminides matrix based on TiAl both in matrix-coated fiber and in fiber-reinforced composites were studied in this paper. The titanium aluminides matrix was examined by means of scanning electron microscope, X-ray diffractometer and transmission electron microscope. The results show that, in sputtering process, amorphous phase forms firstly, and alpha-Ti(Al) + TiAl3 form later. Subsequently, during hot isostatic pressing, the amorphous phase, alpha-Ti(Al) and TiAl3 in the matrix-coated fibers transform into gamma-TiAl and alpha(2)-Ti3Al in the composites. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5 / 10
页数：6
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