The Paton Welding Journal 2015

The Paton Welding Journal ¹06 2015

DOI of Article
2015 ¹06 (21) 2015 ¹06 (23)

TPWJ, 2015, #5-6, 96-100 pages

Structure and properties of railway wheel surface after restoration surfacing and service loading
Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                      0957-798X (print)
Issue                       ¹ 5/6, 2015 (May/June)
Pages                      96-100
L.I. Markashova, V.D. Poznyakov, A.A. Gajvoronsky, E.N. Berdnikova And T.A. Alekseenko
E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail:
Presented are the investigations of effect of composition of surfacing consumables on structure and phase composition of deposited metal of surfacing zones (surface, fusion line, HAZ) in restoration of railway wheels from grade 2 steel. Information received at different structural layers (from grain to dislocation) was used for analytical estimations of effect of parameters of forming structures on mechanical properties (s0.2, K1c) of railway wheels, reconstructed by surfacing, before and after operation. Role of structural factors in change of level of local internal stresses, i.e. sources of crack formation in subsurface layers of deposited metal, was investigated. It is determined that surfacing consumables of bainite and bainite-martensite classes provide for high indices of mechanical properties and crack resistance of railway wheels after restoration repair and operation. 9 Ref., 1 Table, 5 Figures.
Keywords: surfacing, railway wheels, deposited metal, heat-affected zone, structure, phase composition, mechanical properties, crack resistance
Received:                01.04.15
Published:               28.07.15
1. Pavlov, N.V., Kozubenko, I.D., Byzova, N.E. et al. (1993) Hardfacing of flanges of car wheel pair. Zh.-D. Transport, 7, 37-40.
2. Sarzhevsky, V.A., Gajvoronsky, A.A., Gordonny, V.G. et al. (1996) Influence of technological factors on structure and properties of HAZ metal in repair-restoration hardfacing of flanges of car solid-rolled wheels. Avtomatich. Svarka, 3, 22-27, 33.
3. Gudkov, A.V., Lozinsky, V.N. (2008) New technological and technical solutions in field of railway transport welding. Vestnik VNIIZhT, 6, 3-9.
4. Markashova, L.I., Poznyakov, V.D., Gajvoronsky, A.A. et al. (2011) Evaluation of strength and crack resistance of railway wheel metal after long-term service. Fiz.-Khimichna Mekhanika Materialiv, 6, 73-79.
5. Goldshtejn, M.I., Litvinov, V.S., Bronfin, B.M. (1986) Physics of metals of high-strength alloys. Moscow: Metallurgiya.
6. Romaniv, O.N. (1979) Fracture toughness of structural steels. Moscow: Metallurgiya.
7. Gordienko, L.K. (1973) Ultrafine grain in metals. Moscow: Metallurgiya.
8. Gajvoronsky, A.A., Poznyakov, V.D., Markashova, L.I. et al. (2012) Influence of deposited metal composition on structure and mechanical properties of reconditioned railway wheels. The Paton Welding J., 8, 16-22.
9. Markashova, L.I., Poznyakov, V.D., Berdnikova, E.N. et al. (2014) Effect of structural factors on mechanical properties and crack resistance of welded joints of metals, alloys and composite materials. Ibid., 6/7, 22-28.


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