HIGH-TEMPERATURE STRENGTH OF NIOBIUM ALUMINIDE INTERMETALLICS

被引：18

作者：

BARTH, EP ^{[1
]}

TIEN, JK ^{[1
]}

UEJO, S ^{[1
]}

KAMBARA, S ^{[1
]}

机构：

[1] NIPPON MIN CO LTD,VACUUM MET MAT DEV,TOKYO,JAPAN

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1992年 / 153卷 / 1-2期

关键词：

D O I：

10.1016/0921-5093(92)90227-R

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A method has been developed and successfully applied to study the high temperature static and time dependent mechanical properties of niobium-aluminum intermetallic compounds. Essentially single phase NbAl3 has been cast and analyzed with this technique. These results will be compared with previous data from two-phase alloys containing NbAl3. Analysis of NbAl3/Nb2Al mixtures showed the promising nature of the more niobium-rich compositions. Recent results for the highest melting temperature and more promising Nb3Al compound have borne out this prediction. In addition to static hardness up to 1400-degrees-C, the stress exponent and activation energy for creep have been surmized. Most recently, initial results on Nb2Al further support the progression of enhancing high temperature feasibility with increasing niobium concentration.

引用

页码：398 / 401

页数：4