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Title: Surface Coating of Tungsten Carbide by Electric Exploding of Contact

Abstract

Electric exploding of a tungsten carbide--cobalt material near-by high-speed steel surface forms on it a hardening coating. The essential structure properties of the formed coatings are determined by parameters of contact exploding electrode at the pulse current amplitude from above 106 A/cm2 and duration less than 10-4 s. The metallographic investigations of coating structures were done by microscope 'Neophot-24'. They have shown that the contact electric exploding caused the transfer of tungsten carbide and cobalt on the surface of high-speed steel. The breakdown of tungsten carbide--cobalt material took place during electrical exploding. The hardening layers of tungsten carbide and pure nanocrystalline tungsten have been formed upon the surface of high-speed steel as a result of electric exploding. Crystalline grains of tungsten have an almost spherical form and their characteristic size less than 400 nanometers. Micro hardness of the coating layers and high-speed steel structures was measured.

Authors:
 [1]
  1. General Physics Department, Moscow Engineering Physics Institute, Kashirskoe sh. 31, Moscow, 115409 (Russian Federation)
Publication Date:
OSTI Identifier:
21511453
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1315; Journal Issue: 1; Conference: AMPT2010: International conference on advances in materials and processing technologies, Paris (France), 24-27 Oct 2010; Other Information: DOI: 10.1063/1.3552381; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMPLITUDES; BREAKDOWN; COATINGS; COBALT; CRYSTALS; ELECTRIC CONTACTS; ELECTRODES; HARDENING; HARDNESS; LAYERS; METALLOGRAPHY; MICROSCOPES; NANOSTRUCTURES; PULSES; SPHERICAL CONFIGURATION; STEELS; SURFACE COATING; SURFACES; TUNGSTEN CARBIDES; VELOCITY; ALLOYS; CARBIDES; CARBON ADDITIONS; CARBON COMPOUNDS; CONFIGURATION; DEPOSITION; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; METALS; REFRACTORY METAL COMPOUNDS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TUNGSTEN COMPOUNDS

Citation Formats

Grigoryev, Evgeny G. Surface Coating of Tungsten Carbide by Electric Exploding of Contact. United States: N. p., 2011. Web. doi:10.1063/1.3552381.
Grigoryev, Evgeny G. Surface Coating of Tungsten Carbide by Electric Exploding of Contact. United States. https://doi.org/10.1063/1.3552381
Grigoryev, Evgeny G. 2011. "Surface Coating of Tungsten Carbide by Electric Exploding of Contact". United States. https://doi.org/10.1063/1.3552381.
@article{osti_21511453,
title = {Surface Coating of Tungsten Carbide by Electric Exploding of Contact},
author = {Grigoryev, Evgeny G},
abstractNote = {Electric exploding of a tungsten carbide--cobalt material near-by high-speed steel surface forms on it a hardening coating. The essential structure properties of the formed coatings are determined by parameters of contact exploding electrode at the pulse current amplitude from above 106 A/cm2 and duration less than 10-4 s. The metallographic investigations of coating structures were done by microscope 'Neophot-24'. They have shown that the contact electric exploding caused the transfer of tungsten carbide and cobalt on the surface of high-speed steel. The breakdown of tungsten carbide--cobalt material took place during electrical exploding. The hardening layers of tungsten carbide and pure nanocrystalline tungsten have been formed upon the surface of high-speed steel as a result of electric exploding. Crystalline grains of tungsten have an almost spherical form and their characteristic size less than 400 nanometers. Micro hardness of the coating layers and high-speed steel structures was measured.},
doi = {10.1063/1.3552381},
url = {https://www.osti.gov/biblio/21511453}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1315,
place = {United States},
year = {Mon Jan 17 00:00:00 EST 2011},
month = {Mon Jan 17 00:00:00 EST 2011}
}