Rapid Synthesis of Metallic Reinforced in Situ Intermetallic Composites in Ti-Al-Nb System via Resistive Sintering
| Autor: | Mediha Ipek, Sakin Zeytin, Cuma Bindal, I. Altinsoy, Tuba Yener, Gözde Çelebi Efe |
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| Přispěvatelé: | Ipek, M, Yener, T, Efe, GC, Altinsoy, I, Bindal, C, Zeytin, S, Sakarya Üniversitesi/Mühendislik Fakültesi/Metalurji Ve Malzeme Mühendisliği Bölümü, İpek, Mediha, Yener, Tuba, Çelebi Efe, Gözde Fatma, Altınsoy, İbrahim, Bindal, Cuma, Zeytin, Sakin |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
In situ
Intermetallics Intermetallic Sintering 02 engineering and technology 01 natural sciences Metal lcsh:Chemistry 13.90.+I 81.30.Bx 0103 physical sciences Materials Chemistry Composite material Nb-Al 010302 applied physics Resistive touchscreen 73.61.At Chemistry Ti-Al General Chemistry 021001 nanoscience & nanotechnology Resistive Sintering lcsh:QD1-999 visual_art 72.80.Tm visual_art.visual_art_medium 0210 nano-technology 81.20.-n |
| Zdroj: | Open Chemistry, Vol 16, Iss 1, Pp 869-875 (2018) |
| ISSN: | 2391-5420 |
| Popis: | Intermetallics are known as a group of materials that draws attention with their features such as ordered structure, high temperature resistance, high hardness and low density. In this paper, it is aimed to obtain intermetallic matrix composites and also to maintain some ductile Nb and Ti metallic phase by using 99.5% purity, 35-44 μm particle size titanium, niobium and aluminium powders in one step via recently developed powder metallurgy processing technique - Electric current activated/assisted sintering system (ECAS). In this way, metallic reinforced intermetallic matrix composites were produced. Dominant phases of TiAl3 and NbAl3 which were the first compounds formed between peritectic reaction of solid titanium, niobium and molten aluminum in Ti-Al-Nb system during 10, 30 and 90 s for 2000 A current and 1.5-2.0 voltage were detected by XRD and SEM-EDS analysis. Hardness values of the test samples were measured by Vickers indentation technique and it was detected that the hardnesses of intermetallic phases as 411 HVN whereas ductile metallic phase as 120 HVN. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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