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Title: Changes in the structure and wear resistance of the surface layer of copper under treatment by nitrogen ion beams

The structural-phase state of the treated sample surface was investigated by TEM. It was shown by the TEM and VIMS method that the improvement of tribological properties of the copper samples can be associated with an increase of relaxation ability due to a significant increase of the nitrogen concentration in it, which is accompanied by the refinement of fcc-Cu main phase grain structure and the formation of nanopores or gas bubbles in the ion-modified surface layer. A high-dose implantation of nitrogen ions and copper samples increases the wear resistance in 1.5-4.5 times together with a counterbody from the same material in the argon environment. The microhardness of the copper samples also increases.
Authors:
;  [1] ; ; ; ;  [2]
  1. Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055, Russia and National Research Tomsk Polytechnic University, Tomsk, 634050 (Russian Federation)
  2. Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
Publication Date:
OSTI Identifier:
22390443
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1623; Journal Issue: 1; Conference: International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk (Russian Federation), 3-5 Sep 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ARGON; BUBBLES; CONCENTRATION RATIO; COPPER; FCC LATTICES; ION BEAMS; ION IMPLANTATION; IRRADIATION; LAYERS; MICROHARDNESS; NITROGEN IONS; RADIATION EFFECTS; RELAXATION; SURFACES; TRANSMISSION ELECTRON MICROSCOPY; TRIBOLOGY; WEAR RESISTANCE