Structural Features of the Behavior of a High-Carbon Pearlitic Steel upon Cyclic Loading / Makarov A. V.,Savrai R. A.,Schastlivtsev V. M.,Tabatchikova T. I.,Yakovleva I. L.,Egorova L. Yu. // PHYSICS OF METALS AND METALLOGRAPHY. - 2011. - V. 111, l. 1. - P. 95-109.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

The structural evolution upon high-cycle fatigue (tension with the magnitude of stress in a cycle below the macroscopic yield stress) of the hypereutectoid steel U10 (1.03 wt \% C), in which pearlite of different morphology (fine-lamellar, coarse-lamellar, and partially spheroidized pearlite) was formed, has been investigated by scanning and transmission electron microscopy. Based on the fractographic analysis, features of fracture of these structural states have been considered. At a significant distance (10 mm) from the fatigue fracture, features of structural transformations caused by cyclic loading have been revealed. It has been shown that upon high-cycle fatigue in the steel U10 with structures of lamellar and partially spheroidized pearlite, substantial structural changes occur, namely, fragmentation and partial dissolution of cementite plates, and in fine pearlite, additionally, spheroidizing of cementite and polygonization of the ferritic component are observed. A dependence of the character of fracture on the type of structure formed upon fatigue loading has been established. In the steel with a nonequilibrium structure of unannealed fine pearlite, an enhanced elasticity modulus, as compared to other more stable structures (coarse-lamellar, annealed fine, and spheroidized pearlite), and a reduction in the magnitude of the elasticity modulus under the action of cyclic loading have been found. It has been established that the structural changes in fine pearlite of laboratory specimens of the steel U10 upon cyclic tension are qualitatively similar to those in a railroad wheel of the steel 65G under the service conditions

Author keywords:

high-carbon steels; pearlitic structures; cyclic tension; high-cycle fatigue; railroad wheel MECHANICAL-PROPERTIES; DISLOCATION-STRUCTURE; PLASTIC-DEFORMATION; FERRITIC STEELS; WEAR-RESISTANCE; FATIGUE; FRACTURE; DECOMPOSITION; AUSTENITE; CEMENTITE

DOI:

10.1134/S0031918X11010091

Web of Science ID:

ISI:000288908900012

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	MECHANICAL-PROPERTIES; DISLOCATION-STRUCTURE; PLASTIC-DEFORMATION; FERRITIC STEELS; WEAR-RESISTANCE; FATIGUE; FRACTURE; DECOMPOSITION; AUSTENITE; CEMENTITE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Табатчикова, Татьяна/J-4297-2013 Makarov, Aleksey/D-5663-2016 Schastlivtsev, Vadim/I-5825-2013 Savrai, Roman/D-5571-2016 Egorova, Lada/J-3564-2013 Yakovleva, Irina/J-6793-2013
ORCID-Numbers	Табатчикова, Татьяна/0000-0002-4208-0868 Makarov, Aleksey/0000-0002-2228-0643 Schastlivtsev, Vadim/0000-0002-2312-1169 Savrai, Roman/0000-0001-9873-3621 Egorova, Lada/0000-0002-1951-2976 Yakovleva, Irina/0000-0001-8918-3066
Funding-Acknowledgement	Institute of Machine Science (Ural Division, Russian Academy of Sciences) {[}09-C-1-1002]; Institute of Applied Physics (Belarusian National Academy of Sciences) {[}09-C-1-1002]; Institutes of Machine Science and Metal Physics (Ural Division, Russian Academy of Sciences) {[}09-M-12-2002]; Foundation of the OAO MMK; ITTs Ausferr; FNiO Intels {[}60-08-02]
Funding-Text	This work was supported in part by the Institute of Machine Science (Ural Division, Russian Academy of Sciences) and the Institute of Applied Physics (Belarusian National Academy of Sciences), joint project no. 09-C-1-1002; by the Institutes of Machine Science and Metal Physics (Ural Division, Russian Academy of Sciences), interdisciplinary project no. 09-M-12-2002; and by the Foundation of the OAO MMK, ITTs Ausferr, and FNiO Intels, grant no. 60-08-02. The transmission electron-microscopic investigations were performed at the Electron-Microscopy Department of the Center of Collaborative Access ({''}Testing Center of Nanotechnologies and Advanced Materials{''}) of the Institute of Metal Physics, Ural Division, Russian Academy of Sciences.
Number-of-Cited-References	58
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	14
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	741ZX