تقرير
Composites of low-density trialuminides: Particulate and long fiber reinforcements
| العنوان: | Composites of low-density trialuminides: Particulate and long fiber reinforcements |
|---|---|
| المؤلفون: | Kumar, K. S, Dipietro, M. S, Brown, S. A, Whittenberger, J. D |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 1992. |
| سنة النشر: | 1992 |
| مصطلحات موضوعية: | Composite Materials |
| الوصف: | An examination of the ternary L1(sub 2) trialuminides, Al66Ti25Mn9, Al67Ti25Cr8, and Al22Ti8Fe3 in compression, bending, and tension revealed that none of these compounds exhibited a desirable balance of strength, ductility, and oxidation resistance. Subsequently, specific quaternary and quinary compositions were cast, homogenized, and isothermally forged. Both, the monolithic material and its particulate reinforced counterparts were examined in compression, three point bend, and tension as a function of temperature, and at high temperatures as a function of strain rate. An alternate approach that was examined in this program to enhance the low temperature damage tolerance of these materials was to incorporate long refractory metal wires in the matrix. In summary, it appears that of the various matrix compositions examined, ternary Al66Ti25Mn9 exhibits the best balance in strength, ductility, and oxidation resistance. Although the idea of refractory metal wire reinforcement is an attractive one, a successful combination remains to be identified. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| URL الوصول: | https://ntrs.nasa.gov/citations/19920016103 |
| ملاحظات: | NAS3-26069 RTOP 510-01-50 |
| رقم الأكسشن: | edsnas.19920016103 |
| قاعدة البيانات: | NASA Technical Reports |
| الوصف غير متاح. |