Effect of Plastic Deformation on the Structure and Properties of the Ti/TiB Composite Produced by Spark Plasma Sintering
- Authors: Ozerov M.S.1, Gazizova M.Y.1, Klimova M.V.1, Stepanov N.D.1, Zherebtsov S.V.1
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Affiliations:
- Belgorod State University
- Issue: Vol 2018, No 7 (2018)
- Pages: 638-644
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171989
- DOI: https://doi.org/10.1134/S003602951807008X
- ID: 171989
Cite item
Abstract
A Ti/17 vol % TiB composite material is produced by spark plasma sintering of a mixture of titanium and 10 wt % TiB2 powders at a temperature of 1000°C. Multiaxial isothermal forging is performed at t = 850°C to enhance the mechanical properties of the composite. Deformation develops dynamic recrystallization in the titanium matrix and shortens TiB whisker crystals by a factor of ~3. Multiaxial isothermal deformation decreases the temperature of the brittle-to-ductile transition of the Ti/TiB composite material by ~200°C (from ~500 to ~300°C) and results in a plasticity of ~5% upon compression at room temperature. Deformation decreases the microhardness and the wear resistance to a certain degree. Multiaxial isothermal deformation weakly changes the corrosion properties of the composite material in comparison with the initial state.
About the authors
M. S. Ozerov
Belgorod State University
Author for correspondence.
Email: ozerov@bsu.edu.ru
Russian Federation, Belgorod, 308015
M. Yu. Gazizova
Belgorod State University
Email: ozerov@bsu.edu.ru
Russian Federation, Belgorod, 308015
M. V. Klimova
Belgorod State University
Email: ozerov@bsu.edu.ru
Russian Federation, Belgorod, 308015
N. D. Stepanov
Belgorod State University
Email: ozerov@bsu.edu.ru
Russian Federation, Belgorod, 308015
S. V. Zherebtsov
Belgorod State University
Email: ozerov@bsu.edu.ru
Russian Federation, Belgorod, 308015