Analysis of structure and phase composition of rails subjected to differential hardening at different regimes

V. E. Gromov, K. V. Morozov, Yu F. Ivanov, K. V. Volkov, S. V. Konovalov, K. V. Alsaraeva, O. A. Semina

Research Center for Physical Materials Science and Composite Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Differential hardening of rails by compressed air in different regimes is accompanied by formation of morphologically different structure, being formed according to the diffusion mechanism of γ虠α transformation and consisting of grains of lamellar pearlite, free ferrite and grains of ferrite-carbide mixture. By methods of transmission electron microscopy the layer by layer analysis of differentially hardened rails has been carried out, the quantitative parameters of the structure, phase composition and dislocation substructure have been established and their comparison has been made for different regimes of hardening. It has been found that the structure-phase states being formed have gradient character, defined by the hardening regime, direction of study from the surface of rolling and by depth of location of layer under study.

Original language	English
Title of host publication	AIP Conference Proceedings
Publisher	American Institute of Physics Inc.
Pages	195-198
Number of pages	4
Volume	1623
ISBN (Print)	9780735412606
DOIs	https://doi.org/10.1063/1.4898916
Publication status	Published - 2014
Event	International Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation Duration: 3 Sep 2014 → 5 Sep 2014

Other

Other	International Conference on Physical Mesomechanics of Multilevel Systems 2014
Country	Russian Federation
City	Tomsk
Period	3.9.14 → 5.9.14

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Keywords

Dislocation substructure
Electron microscopy
Phase composition
Rails
Steel
Structure

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Gromov, V. E., Morozov, K. V., Ivanov, Y. F., Volkov, K. V., Konovalov, S. V., Alsaraeva, K. V., & Semina, O. A. (2014). Analysis of structure and phase composition of rails subjected to differential hardening at different regimes. In AIP Conference Proceedings (Vol. 1623, pp. 195-198). American Institute of Physics Inc.. https://doi.org/10.1063/1.4898916

Analysis of structure and phase composition of rails subjected to differential hardening at different regimes. / Gromov, V. E.; Morozov, K. V.; Ivanov, Yu F.; Volkov, K. V.; Konovalov, S. V.; Alsaraeva, K. V.; Semina, O. A.

AIP Conference Proceedings. Vol. 1623 American Institute of Physics Inc., 2014. p. 195-198.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gromov, VE, Morozov, KV, Ivanov, YF, Volkov, KV, Konovalov, SV, Alsaraeva, KV & Semina, OA 2014, Analysis of structure and phase composition of rails subjected to differential hardening at different regimes. in AIP Conference Proceedings. vol. 1623, American Institute of Physics Inc., pp. 195-198, International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russian Federation, 3.9.14. https://doi.org/10.1063/1.4898916

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abstract = "Differential hardening of rails by compressed air in different regimes is accompanied by formation of morphologically different structure, being formed according to the diffusion mechanism of γ虠α transformation and consisting of grains of lamellar pearlite, free ferrite and grains of ferrite-carbide mixture. By methods of transmission electron microscopy the layer by layer analysis of differentially hardened rails has been carried out, the quantitative parameters of the structure, phase composition and dislocation substructure have been established and their comparison has been made for different regimes of hardening. It has been found that the structure-phase states being formed have gradient character, defined by the hardening regime, direction of study from the surface of rolling and by depth of location of layer under study.",

keywords = "Dislocation substructure, Electron microscopy, Phase composition, Rails, Steel, Structure",

author = "Gromov, {V. E.} and Morozov, {K. V.} and Ivanov, {Yu F.} and Volkov, {K. V.} and Konovalov, {S. V.} and Alsaraeva, {K. V.} and Semina, {O. A.}",

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AU - Gromov, V. E.

AU - Morozov, K. V.

AU - Ivanov, Yu F.

AU - Volkov, K. V.

AU - Konovalov, S. V.

AU - Alsaraeva, K. V.

AU - Semina, O. A.

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AB - Differential hardening of rails by compressed air in different regimes is accompanied by formation of morphologically different structure, being formed according to the diffusion mechanism of γ虠α transformation and consisting of grains of lamellar pearlite, free ferrite and grains of ferrite-carbide mixture. By methods of transmission electron microscopy the layer by layer analysis of differentially hardened rails has been carried out, the quantitative parameters of the structure, phase composition and dislocation substructure have been established and their comparison has been made for different regimes of hardening. It has been found that the structure-phase states being formed have gradient character, defined by the hardening regime, direction of study from the surface of rolling and by depth of location of layer under study.

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KW - Electron microscopy

KW - Phase composition

KW - Rails

KW - Steel

KW - Structure

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Access to Document

10.1063/1.4898916