Modification of the structure and phase composition of structural steel by a microsecond e-beam

Yu F. Ivanov, Yu A. Kolubaeva, V. N. Devyatkov, O. V. Krysina, Nikolay Nikolaevich Koval, P. V. Schanin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The structure and phase composition of prehardened 38CrNi3MoVN steel subjected to an electron beam treatment have been studied by the metallographic, scanning, and transmission electron microscopy. The e-beam parameters are as follows: the energy of accelerated electrons U ≈ 15 keV, the beam current I ≈ 60 А, the current pulse duration t ≈ 30 μs, the pulse repetition rate f ≈ 1 Hz, the beam diameter in the specimen surface plane D ≈ 1.6 cm, and the beam energy density ES ≈ 10 J/cm2. The e-beam treatment of the material has been shown to result in a gradient structure whose characteristic feature is a considerable (tenfold) decrease in the average size of martensite crystallites and laths with attended increase in the steel surface layer hardness by a factor of 2.5–3.

Original languageEnglish
Pages (from-to)221-226
Number of pages6
JournalHigh Temperature Material Processes
Volume17
Issue number4
Publication statusPublished - 1 Sep 2013

Fingerprint

Steel
Phase composition
steels
Pulse repetition rate
Crystallites
Martensite
Electron beams
Laser pulses
Hardness
Transmission electron microscopy
Scanning electron microscopy
Electrons
pulse repetition rate
beam currents
martensite
crystallites
surface layers
pulse duration
hardness
flux density

Keywords

  • Electron beam
  • Steel
  • Surface modification

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Materials Science(all)
  • Energy Engineering and Power Technology
  • Spectroscopy
  • Physical and Theoretical Chemistry

Cite this

Modification of the structure and phase composition of structural steel by a microsecond e-beam. / Ivanov, Yu F.; Kolubaeva, Yu A.; Devyatkov, V. N.; Krysina, O. V.; Koval, Nikolay Nikolaevich; Schanin, P. V.

In: High Temperature Material Processes, Vol. 17, No. 4, 01.09.2013, p. 221-226.

Research output: Contribution to journalArticle

Ivanov, Yu F. ; Kolubaeva, Yu A. ; Devyatkov, V. N. ; Krysina, O. V. ; Koval, Nikolay Nikolaevich ; Schanin, P. V. / Modification of the structure and phase composition of structural steel by a microsecond e-beam. In: High Temperature Material Processes. 2013 ; Vol. 17, No. 4. pp. 221-226.
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