Structure of the surface layer of a wear-resistant coating after treatment with a high-intensity electron beam

S. V. Raykov, E. V. Kapralov, E. S. Vashchuk, E. A. Budovskikh, V. E. Gromov, Yu F. Ivanov, A. D. Teresov, K. V. Sosnin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Transmission electron microscopy is used to investigate the carbon extraction replicas of a wearresistant surface layer formed on Hardox 400 steel and its phase composition. The formation of a multiphase state is revealed, which includes a-iron grains and inclusions of carbide phases based on iron, chromium, and niobium. The surface layer is additionally treated by a high-intensity pulsed electron beam. The relative position of α-iron grains and particles of carbide phases is examined by the electron-diffraction microscopy of thin foils. The main carbide phase is iron carbide located as extended interlayers which separate a-iron grains. Nanoscale particles of chromium and niobium carbides are located at the interfaces of the a-iron–iron-carbide system and in the body of the a-iron grains. It is established that the surface layer is in the elastic-stress state during pulsed electron-beam treatment due to ultrahigh heating and cooling rates. It is shown that stress concentrators are the interphase boundaries between the carbide and the a-phase of iron.

Original languageEnglish
Pages (from-to)934-938
Number of pages5
JournalJournal of Surface Investigation
Volume9
Issue number5
DOIs
Publication statusPublished - 1 Sep 2015

Fingerprint

Carbides
Electron beams
Iron
Wear of materials
Coatings
Chromium
Niobium
Steel
Phase composition
Electron diffraction
Metal foil
Microscopic examination
Carbon
Transmission electron microscopy
Cooling
Heating

Keywords

  • electron-beam treatment
  • flux-cored wire
  • Hardox 400 steel
  • phase composition
  • structure
  • surfacing

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Structure of the surface layer of a wear-resistant coating after treatment with a high-intensity electron beam. / Raykov, S. V.; Kapralov, E. V.; Vashchuk, E. S.; Budovskikh, E. A.; Gromov, V. E.; Ivanov, Yu F.; Teresov, A. D.; Sosnin, K. V.

In: Journal of Surface Investigation, Vol. 9, No. 5, 01.09.2015, p. 934-938.

Research output: Contribution to journalArticle

Raykov, SV, Kapralov, EV, Vashchuk, ES, Budovskikh, EA, Gromov, VE, Ivanov, YF, Teresov, AD & Sosnin, KV 2015, 'Structure of the surface layer of a wear-resistant coating after treatment with a high-intensity electron beam', Journal of Surface Investigation, vol. 9, no. 5, pp. 934-938. https://doi.org/10.1134/S1027451015050134
Raykov, S. V. ; Kapralov, E. V. ; Vashchuk, E. S. ; Budovskikh, E. A. ; Gromov, V. E. ; Ivanov, Yu F. ; Teresov, A. D. ; Sosnin, K. V. / Structure of the surface layer of a wear-resistant coating after treatment with a high-intensity electron beam. In: Journal of Surface Investigation. 2015 ; Vol. 9, No. 5. pp. 934-938.
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