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Gromov, V. E.; Ivanov, Yu. F.; Qin, R. S.; Peregudov, O. A.; Aksenova, K. V. and Semina, O. A.
(2017).
DOI: https://doi.org/10.1080/02670836.2017.1287983
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 10-50 nm in size after passed 500 MTGW. The early stage dynamical recrystallization 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.
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About
- Item ORO ID
- 48590
- Item Type
- Journal Item
- ISSN
- 1743-2847
- Project Funding Details
-
Funded Project Name Project ID Funding Body Not Set 15-12-00010 Russian Science Foundation - Keywords
- rail steel; microstructure; defect substructure; internal stress
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Copyright Holders
- © 2017 Institute of Materials, Minerals and Mining
- Depositing User
- Rongshan Qin