Degradation of structure and properties of rail surface layer at long-term operation

V. E. Gromov, Yury Fedorovich Ivanov, R. S. Qin, O. A. Peregudov, K. V. Aksenova, O. A. Semina

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The microstructure evolution and properties variation of the surface layer of rail steel after passed 500 and 1000 million tons of gross weight (MTGW) have been investigated. The wear rate increases to 3 and 3.4 times after passed 500 and 1000 MTGW, respectively. The corresponding friction coefficient decreases by 1.4 and 1.1 times. The cementite plates were destroyed and formed the cementite particles of around 10–50nm in size after passed 500 MTGW. The early stage dynamical recrystallisation was observed after passed 1000 MTGW. The mechanisms for these have been suggested. The large number of bend extinction contours is revealed in the surface layer. The internal stress field is evaluated.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalMaterials Science and Technology (United Kingdom)
Volume33
Issue number12
DOIs
Publication statusAccepted/In press - 11 Feb 2017

Fingerprint

rails
Rails
surface layers
degradation
cementite
Degradation
Steel
Residual stresses
Wear of materials
Friction
Microstructure
coefficient of friction
stress distribution
residual stress
extinction
steels
microstructure

Keywords

  • defect substructure
  • internal stress
  • microstructure
  • Rail steel

ASJC Scopus subject areas

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

Cite this

Degradation of structure and properties of rail surface layer at long-term operation. / Gromov, V. E.; Ivanov, Yury Fedorovich; Qin, R. S.; Peregudov, O. A.; Aksenova, K. V.; Semina, O. A.

In: Materials Science and Technology (United Kingdom), Vol. 33, No. 12, 11.02.2017, p. 1-6.

Research output: Contribution to journalArticle

Gromov, V. E. ; Ivanov, Yury Fedorovich ; Qin, R. S. ; Peregudov, O. A. ; Aksenova, K. V. ; Semina, O. A. / Degradation of structure and properties of rail surface layer at long-term operation. In: Materials Science and Technology (United Kingdom). 2017 ; Vol. 33, No. 12. pp. 1-6.
@article{82ba87f0be7445b9bfe45726789afb40,
title = "Degradation of structure and properties of rail surface layer at long-term operation",
abstract = "The microstructure evolution and properties variation of the surface layer of rail steel after passed 500 and 1000 million tons of gross weight (MTGW) have been investigated. The wear rate increases to 3 and 3.4 times after passed 500 and 1000 MTGW, respectively. The corresponding friction coefficient decreases by 1.4 and 1.1 times. The cementite plates were destroyed and formed the cementite particles of around 10–50nm in size after passed 500 MTGW. The early stage dynamical recrystallisation was observed after passed 1000 MTGW. The mechanisms for these have been suggested. The large number of bend extinction contours is revealed in the surface layer. The internal stress field is evaluated.",
keywords = "defect substructure, internal stress, microstructure, Rail steel",
author = "Gromov, {V. E.} and Ivanov, {Yury Fedorovich} and Qin, {R. S.} and Peregudov, {O. A.} and Aksenova, {K. V.} and Semina, {O. A.}",
year = "2017",
month = "2",
day = "11",
doi = "10.1080/02670836.2017.1287983",
language = "English",
volume = "33",
pages = "1--6",
journal = "Materials Science and Technology",
issn = "0267-0836",
publisher = "Maney Publishing",
number = "12",

}

TY - JOUR

T1 - Degradation of structure and properties of rail surface layer at long-term operation

AU - Gromov, V. E.

AU - Ivanov, Yury Fedorovich

AU - Qin, R. S.

AU - Peregudov, O. A.

AU - Aksenova, K. V.

AU - Semina, O. A.

PY - 2017/2/11

Y1 - 2017/2/11

N2 - The microstructure evolution and properties variation of the surface layer of rail steel after passed 500 and 1000 million tons of gross weight (MTGW) have been investigated. The wear rate increases to 3 and 3.4 times after passed 500 and 1000 MTGW, respectively. The corresponding friction coefficient decreases by 1.4 and 1.1 times. The cementite plates were destroyed and formed the cementite particles of around 10–50nm in size after passed 500 MTGW. The early stage dynamical recrystallisation was observed after passed 1000 MTGW. The mechanisms for these have been suggested. The large number of bend extinction contours is revealed in the surface layer. The internal stress field is evaluated.

AB - The microstructure evolution and properties variation of the surface layer of rail steel after passed 500 and 1000 million tons of gross weight (MTGW) have been investigated. The wear rate increases to 3 and 3.4 times after passed 500 and 1000 MTGW, respectively. The corresponding friction coefficient decreases by 1.4 and 1.1 times. The cementite plates were destroyed and formed the cementite particles of around 10–50nm in size after passed 500 MTGW. The early stage dynamical recrystallisation was observed after passed 1000 MTGW. The mechanisms for these have been suggested. The large number of bend extinction contours is revealed in the surface layer. The internal stress field is evaluated.

KW - defect substructure

KW - internal stress

KW - microstructure

KW - Rail steel

UR - http://www.scopus.com/inward/record.url?scp=85012914798&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85012914798&partnerID=8YFLogxK

U2 - 10.1080/02670836.2017.1287983

DO - 10.1080/02670836.2017.1287983

M3 - Article

VL - 33

SP - 1

EP - 6

JO - Materials Science and Technology

JF - Materials Science and Technology

SN - 0267-0836

IS - 12

ER -