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Modification of chromium/titanium system phase composition and mechanical properties by compression plasma flows

N. N. CHERENDA1,* , V. V. UGLOV1, V. I. SHYMANSKI1, V. M. ASTASHYNSKI2, A. M. KUZMITSKI2

Affiliation

  1. Belarusian State University,4 Nezavisimosti ave., 220030 Minsk, Belarus
  2. B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 70 Nezavisimosti ave., 220072 Minsk, Belarus

Abstract

Phase composition and mechanical properties changes of the titanium surface layer nitrided and alloyed by chromium under the action of compression plasma flows have been investigated. The findings showed the formation of an alloyed layer with the thickness of up to 27 µm containing α-Ti, α-Ti and β-Ti(Cr) phases. The volume fraction of these phases was dependent on treatment regimes. The titanium nitride formation in the surface layer was observed. Treatment by compression plasma flows allowed to increase 2.5 times the surface layer microhardness and to diminish 4.2 times the friction coefficient..

Keywords

Titanium, Compression plasma flows, Titanium nitride, Alloying.

Submitted at: June 19, 2009
Accepted at: Feb. 27, 2010

Citation

N. N. CHERENDA, V. V. UGLOV, V. I. SHYMANSKI, V. M. ASTASHYNSKI, A. M. KUZMITSKI, Modification of chromium/titanium system phase composition and mechanical properties by compression plasma flows, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 3, pp. 749-753 (2010)