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 language | English |
|---|---|
| Pages (from-to) | 224-227 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 209 |
| DOIs | |
| Publication status | Published - 15 Dec 2017 |
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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
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 journal › Article
}
TY - JOUR
T1 - Defect substructure change in 100-m differentially hardened rails in long-term operation
AU - Gromov, V. E.
AU - Yuriev, A. A.
AU - Ivanov, Yu F.
AU - Glezer, A. M.
AU - Konovalov, S. V.
AU - Semin, A. P.
AU - Sundeev, R. V.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - 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.
AB - 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.
KW - Differentially hardened rails
KW - Dislocation density
KW - Long-term operation
KW - Substructure
UR - http://www.scopus.com/inward/record.url?scp=85026870844&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85026870844&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2017.07.135
DO - 10.1016/j.matlet.2017.07.135
M3 - Article
VL - 209
SP - 224
EP - 227
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -