التفاصيل البيبلوغرافية
| العنوان: |
Structural and Phase Transformations in Alloys during Spark Plasma Sintering of Ti + 23.5 at % Al + 21 at % Nb Powder Mixtures. |
| المؤلفون: |
Karakozov, B. K., Skakov, M. K., Kurbanbekov, Sh. R., Baklanov, V. V., Sitnikov, A. A., Dudina, D. V., Maly, V. I., Yakovlev, V. I. |
| المصدر: |
Inorganic Materials; Jan2018, Vol. 54 Issue 1, p37-41, 5p, 1 Black and White Photograph, 2 Charts, 1 Graph |
| مصطلحات موضوعية: |
PHASE transitions, ALLOYS, SINTERING, POWDER metallurgy, INTERMETALLIC compounds, TITANIUM aluminides |
| مستخلص: |
We have studied the effect of sintering temperature on the structural and phase transformations of alloys produced by the spark plasma sintering of Ti + 23.5 at % Al + 21 at % Nb powder mixtures at temperatures in the range 1100–1550°C. The sintered alloys have been characterized by X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy (elemental X-ray mapping). The alloys sintered at temperatures of 1100 and 1200°C have been shown to have a nonuniform microstructure. According to electron microscopy results, the alloys consist of grains of the α2 and Nb2Al phases and small precipitates of the O-phase (intermetallic compound Ti2AlNb). In addition, there are particles of unreacted niobium and titanium. The alloys sintered at a temperature of 1300°C have a uniform lamellar structure. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |