التفاصيل البيبلوغرافية
| العنوان: |
Microstructure and room-temperature mechanical properties of Nb/Nb5Si3 alloys fabricated by spark plasma sintering |
| المؤلفون: |
Yongming Fu, Wei Liu, Wei Zong, Jiangbo Sha |
| المصدر: |
Procedia Engineering. 27:1156-1161 |
| بيانات النشر: |
Elsevier BV, 2012. |
| سنة النشر: |
2012 |
| مصطلحات موضوعية: |
Nb/ Nb5Si3 alloys, Materials science, Spark plasma sintering, microstructure, Metallurgy, Alloy, room-temperature mechanical properties, General Medicine, engineering.material, Microstructure, Fracture toughness, Volume fraction, engineering, Metal powder, Engineering(all) |
| الوصف: |
Using pure Nb and Nb5Si3 metal powder as raw material, Nb/Nb5Si3 alloys with three different proportions (90:10, 70:30 and 50:50) were fabricated by spark plasma sintering (SPS). The microstructures, relative densities, and room-temperature mechanical properties of the three SPS Nb/Nb5Si3 alloys were investigated. It is revealed that the synthesized alloys are composed of two phases of Nb and Nb5Si3. The volume fraction of Nb and Nb5Si3 in the synthesized alloys is in line with the original ratio, indicating that the volume fraction ratio of Nb to Nb5Si3 is able to be precisely controlled. The SPS Nb/Nb5Si3 alloys are nearly fully dense and their relative densities are above 99.66%. With an increasing volume fraction of Nb5Si3, the room-temperature hardness of the bulk SPS alloys increased, meanwhile, the fracture toughness decreased with a little amplitude. The SPS alloy with a Nb/Nb5Si3 volume fraction ratio of 50:50 has the highest hardness of Hv879.6, and that with a Nb/Nb5Si3 volume fraction ratio of 90:10 has the highest fracture toughness of 6.9MPa m1/2. |
| تدمد: |
1877-7058 |
| DOI: |
10.1016/j.proeng.2011.12.566 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d99505c76593dbb640479fd80924d2ad |
| Rights: |
OPEN |
| رقم الانضمام: |
edsair.doi.dedup.....d99505c76593dbb640479fd80924d2ad |
| قاعدة البيانات: |
OpenAIRE |