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Title: Structural state scale-dependent physical characteristics and endurance of cermet composite for cutting metal

A structural-phase state developed on the surface of a TiC/Ni–Cr–Al cermet alloy under superfast heating and cooling produced by pulse electron beam melting has been presented. The effect of the surface’s structural state multimodality on the temperature dependencies of the friction and endurance of the cermet tool in cutting metal has been investigated. The high-energy flux treatment of subsurface layers by electron beam pulses in argon-containing gas discharge plasma serves to improve the endurance of metal cutting tools manifold (by a factor of 6), to reduce the friction via precipitation of secondary 200 nm carbides in binder interlayers. It is possible to improve the cermet tool endurance for cutting metal by a factor of 10–12 by irradiating the cermet in a reactive nitrogen-containing atmosphere with the ensuing precipitation of nanosize 50 nm AlN particles in the binder interlayers.
Authors:
 [1] ;  [2] ;  [3] ; ;  [4]
  1. Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055, Russia and Institute of Heavy-Current Electronics SB RAS, Tomsk, 634055 (Russian Federation)
  2. Institute of Heavy-Current Electronics SB RAS, Tomsk, 634055, Russia and National Research Tomsk Polytechnic University, Tomsk, 634050 (Russian Federation)
  3. Institute of Heavy-Current Electronics SB RAS, Tomsk, 634055 (Russian Federation)
  4. Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 (China)
Publication Date:
OSTI Identifier:
22390433
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; ALUMINIUM NITRIDES; ARGON; CERMETS; CUTTING; CUTTING TOOLS; ELECTRON BEAM MELTING; ELECTRON BEAMS; FRICTION; HEATING; LAYERS; METALS; NANOSTRUCTURES; PHASE TRANSFORMATIONS; PLASMA; PRECIPITATION; PULSED IRRADIATION; RADIATION EFFECTS; SURFACES; TITANIUM CARBIDES