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Nitriding of technical-purity titanium in hollow-cathode glow discharge

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Abstract

The process of nitriding at low pressures and temperatures (≤550°C) in hollow-cathode glow discharge plasma was studied for technical-purity titanium of the VT1-0 commercial grade. The diffusion saturation of titanium with nitrogen in plasma with a concentration of n = 1010–1011 cm−3 takes place at an ion current density on the cathode within 1.6–4.0 mA/cm2. It is established that a key role in the process of metal saturation is played by atomic nitrogen. The experiments revealed the formation of a layer of gradient structure with a high microhardness (∼14 GPa) on the surface of nitrided titanium.

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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 31, No. 13, 2005, pp. 24–30.

Original Russian Text Copyright © 2005 by Akhmadeev, Goncharenko, Ivanov, Koval, Schanin.

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Akhmadeev, Y.K., Goncharenko, I.M., Ivanov, Y.F. et al. Nitriding of technical-purity titanium in hollow-cathode glow discharge. Tech. Phys. Lett. 31, 548–550 (2005). https://doi.org/10.1134/1.2001050

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  • DOI: https://doi.org/10.1134/1.2001050

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