Compaction of nanocrystalline gamma-titanium aluminides

被引：0
|
作者：
Cavusoglu, M [1 ]
Senkov, ON
Froes, FH
Ovecoglu, ML
Zimmerly, T
Inal, O
机构：
[1] Univ Idaho, Coll Mines & Earth Resources, Inst Mat & Adv Proc, Moscow, ID 83844 USA
[2] Istanbul Tech Univ, Dept Met Engn, TR-80626 Istanbul, Turkey
[3] New Mexico Inst Min & Technol, Dept Mat & Met Engn, Socorro, NM 87801 USA
来源：
DEVELOPMENT IN LIGHT METALS: SCIENCE, TECHNOLOGY AND APPLICATION | 2000年 / 188卷
关键词：
explosive compaction; hot isostatic pressing (HIP); mechanical alloying; powder metallurgy; titanium-aluminum alloys;
D O I：
10.4028/www.scientific.net/KEM.188.15
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper presents results on compaction of amorphous TiAl-type powders by both conventional hot isostatic pressing (HIP'ing) and extremely high strain rate explosive compaction (EC). 100% density and a grain size of 40 nm were achieved after HIP'ing at 725 degreesC, whereas smaller grain size or even an amorphous state was obtained after EC. However, in the latter case the microstructure was non-homogenous, exhibiting some porosity, internal cracks and a high level of oxygen.
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页码：15 / 25
页数：11
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