Structure and properties of the eutectoid steel u8 after high-temperature deformation: I. Metallographic study and mechanical tests / Yakovleva IL,Kar'kina LE,Khlebnikova YV,Schastlivtsev VM,Urtsev VN,Morozov SA,Degtyarev VN // PHYSICS OF METALS AND METALLOGRAPHY. - 2004. - V. 98, l. 4. - P. 399-406.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

The phase composition and mechanical properties of the carbon eutectoid steel U8 subjected to hot deformation by torsion in a temperature range of 650-900degreesC have been studied. In the samples deformed above the phase-transformation temperature (at 900-750degreesC), the formation of a mixed pearlitic-martensitic or fully pearlitic structure is shown to be determined by the time of postdeformation isothermal holding at 650degreesC. For the samples deformed in the intercritical temperature range (700-650degreesC), the formation of a mixed pearlitic-martensitic structure is determined by the total time of deformation and subsequent holding at 650degreesC. In two-phase samples, the volume fraction of the pearlitic component increases from the center to the periphery of a sample. It is discovered that, as the preliminary deformation E increases, the mode of fracture of the samples with a fully pearlitic structure changes from ductile at the center, where epsilon = 0, to brittle at the periphery, where epsilon = max.

Author keywords:

нет данных

DOI:

нет данных

Web of Science ID:

ISI:000225169400009

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	OCT
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Schastlivtsev, Vadim/I-5825-2013 Yakovleva, Irina/J-6793-2013 Karkina, Lidia/J-5994-2013 Khlebnikova, Yulia/K-2076-2013
ORCID-Numbers	Schastlivtsev, Vadim/0000-0002-2312-1169 Yakovleva, Irina/0000-0001-8918-3066 Karkina, Lidia/0000-0002-4083-4048 Khlebnikova, Yulia/0000-0003-2196-1647
Number-of-Cited-References	17
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	871XH