Pressure-Assisted Electrothermal Explosion Synthesis of Titanium Nickelide
- Authors: Bogatov Y.V.1, Shcherbakov A.V.1, Shcherbakov V.A.1, Kovalev D.Y.1, Sychev A.E.1
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Affiliations:
- Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
- Issue: Vol 59, No 10 (2023)
- Pages: 1185-1191
- Section: Articles
- URL: https://medjrf.com/0002-337X/article/view/668108
- DOI: https://doi.org/10.31857/S0002337X23100019
- EDN: https://elibrary.ru/CDXUJC
- ID: 668108
Cite item
Abstract
Titanium nickelide alloys have been prepared by pressure-assisted electrothermal explosion (ETE) synthesis. We have examined the effect of Joule heating power on ETE parameters and the physicomechanical properties of the synthesized alloys. The results demonstrate that raising the electrical voltage applied to the starting mixture leads to a decrease in ignition time and increase in the maximum ETE temperature. The ignition temperature was 350°C, independent of the Joule heating power. X-ray diffraction characterization showed that the major phase in the alloys was NiTi. According to uniaxial compression test results, the compressive strength of the alloys is 1980 MPa. Their microhardness HV is 6.4 ± 0.8 GPa. Instrumental indentation has been used to determine their hardness under load (HM = 9.4 GPa) and characteristics of their plastic and elastic deformation. The synthesized alloys have been shown to have high plasticity.
About the authors
Yu. V. Bogatov
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: vladimir@ism.ac.ru
142432, Chernogolovka, Moscow oblast, Russia
A. V. Shcherbakov
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: vladimir@ism.ac.ru
142432, Chernogolovka, Moscow oblast, Russia
V. A. Shcherbakov
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: vladimir@ism.ac.ru
142432, Chernogolovka, Moscow oblast, Russia
D. Yu. Kovalev
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Email: vladimir@ism.ac.ru
142432, Chernogolovka, Moscow oblast, Russia
A. E. Sychev
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences
Author for correspondence.
Email: vladimir@ism.ac.ru
142432, Chernogolovka, Moscow oblast, Russia
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