Micro- and nanostructure of a titanium surface electric-spark-doped with tantalum and modified by high-frequency currents
- 作者: Fomin A.1, Fomina M.1, Koshuro V.1, Rodionov I.1, Voiko A.1, Zakharevich A.2, Aman A.3,4, Oseev A.3,4, Hirsch S.3,4, Majcherek S.3,4
-
隶属关系:
- Yuri Gagarin State Technical University of Saratov
- Saratov State University
- University of Applied Sciences
- Otto-von-Guericke University
- 期: 卷 42, 编号 9 (2016)
- 页面: 932-935
- 栏目: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/201191
- DOI: https://doi.org/10.1134/S1063785016090170
- ID: 201191
如何引用文章
详细
We have studied the characteristics of the porous microstructure of tantalum coatings obtained by means of electric spark spraying on the surface of commercial grade titanium. It is established that, at an electric spark current within 0.8–2.2 A, a mechanically strong tantalum coating microstructure is formed with an average protrusion size of 5.1–5.4 µm and pore sizes from 3.5 to 9.2 µm. On the nanoscale, a structurally heterogeneous state of coatings has been achieved by subsequent thermal modification at 800–830°C with the aid of high-frequency currents. A metal oxide nanostructure with grain sizes from 40 to 120 nm is formed by short-time (~30 s) thermal modification. The coating hardness reaches 9.5–10.5 GPa at an elastic modulus of 400–550 GPa.
作者简介
A. Fomin
Yuri Gagarin State Technical University of Saratov
编辑信件的主要联系方式.
Email: afominalex@rambler.ru
俄罗斯联邦, Saratov, 410054
M. Fomina
Yuri Gagarin State Technical University of Saratov
Email: afominalex@rambler.ru
俄罗斯联邦, Saratov, 410054
V. Koshuro
Yuri Gagarin State Technical University of Saratov
Email: afominalex@rambler.ru
俄罗斯联邦, Saratov, 410054
I. Rodionov
Yuri Gagarin State Technical University of Saratov
Email: afominalex@rambler.ru
俄罗斯联邦, Saratov, 410054
A. Voiko
Yuri Gagarin State Technical University of Saratov
Email: afominalex@rambler.ru
俄罗斯联邦, Saratov, 410054
A. Zakharevich
Saratov State University
Email: afominalex@rambler.ru
俄罗斯联邦, Saratov, 410012
A. Aman
University of Applied Sciences; Otto-von-Guericke University
Email: afominalex@rambler.ru
德国, Brandenburg, 14770; Magdeburg, 31106
A. Oseev
University of Applied Sciences; Otto-von-Guericke University
Email: afominalex@rambler.ru
德国, Brandenburg, 14770; Magdeburg, 31106
S. Hirsch
University of Applied Sciences; Otto-von-Guericke University
Email: afominalex@rambler.ru
德国, Brandenburg, 14770; Magdeburg, 31106
S. Majcherek
University of Applied Sciences; Otto-von-Guericke University
Email: afominalex@rambler.ru
德国, Brandenburg, 14770; Magdeburg, 31106