Defect substructure change in 100-m differentially hardened rails in long-term operation

V. E. Gromov, A. A. Yuriev, Yu F. Ivanov, A. M. Glezer, S. V. Konovalov, A. P. Semin, R. V. Sundeev

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

By methods of optical and transmission electron diffraction microscopy the evolution in structural phase states of surface layers head of differentially hardened rails of DT 350 category to the depth up to 10 mm along the central axis after the passed tonnage of 691.8 mln. t brutto was studied. The formation of gradient substructure being expressed in regular change in scalar and excess density of dislocations, curvature-torsion amplitude of steel crystal lattice, degree of deformation transformation of lamellar pearlite structure was defected. The failure mechanisms of cementite plates were considered.

Original languageEnglish
Pages (from-to)224-227
Number of pages4
JournalMaterials Letters
Volume209
DOIs
Publication statusPublished - 15 Dec 2017

Fingerprint

pearlite
cementite
Pearlite
Steel
rails
substructures
Dislocations (crystals)
crystal lattices
Electron diffraction
Crystal lattices
Torsional stress
torsion
Rails
surface layers
Microscopic examination
electron diffraction
curvature
steels
scalars
microscopy

Keywords

  • Differentially hardened rails
  • Dislocation density
  • Long-term operation
  • Substructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Gromov, V. E., Yuriev, A. A., Ivanov, Y. F., Glezer, A. M., Konovalov, S. V., Semin, A. P., & Sundeev, R. V. (2017). Defect substructure change in 100-m differentially hardened rails in long-term operation. Materials Letters, 209, 224-227. https://doi.org/10.1016/j.matlet.2017.07.135

Defect substructure change in 100-m differentially hardened rails in long-term operation. / Gromov, V. E.; Yuriev, A. A.; Ivanov, Yu F.; Glezer, A. M.; Konovalov, S. V.; Semin, A. P.; Sundeev, R. V.

In: Materials Letters, Vol. 209, 15.12.2017, p. 224-227.

Research output: Contribution to journalArticle

Gromov, VE, Yuriev, AA, Ivanov, YF, Glezer, AM, Konovalov, SV, Semin, AP & Sundeev, RV 2017, 'Defect substructure change in 100-m differentially hardened rails in long-term operation', Materials Letters, vol. 209, pp. 224-227. https://doi.org/10.1016/j.matlet.2017.07.135
Gromov, V. E. ; Yuriev, A. A. ; Ivanov, Yu F. ; Glezer, A. M. ; Konovalov, S. V. ; Semin, A. P. ; Sundeev, R. V. / Defect substructure change in 100-m differentially hardened rails in long-term operation. In: Materials Letters. 2017 ; Vol. 209. pp. 224-227.
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