Production of heat-resistant EP220 and EP929 alloys by high-temperature treatment of melt / Tyagunov A.G., Baryshev E.E., Tyagunov G.V., Mikhailov V.B. // Steel in Translation. - 2013. - V. 43, l. 9. - P. 557-560.

ISSN:

09670912

Type:

Article

Abstract:

Analysis of samples of EP220 and EP929 alloys in the liquid and solid state permits the determination of the parameters for high-temperature melt treatment in their production. On heating to specific temperatures, the structure of the liquid alloys moves closer to equilibrium. In the solidification of such melt, the cast metal formed is characterized by finer grain structure, greater dispersity of the dendrites, and greater density and microhardness of the matrix. Industrial adoption of high-temperature melt treatment will improve plasticity, increase the long-term strength, and boost the product yield. The proposed technology does not fully utilize the potential of the alloy structure obtained after high-temperature melt treatment. The effect may be amplified by more prolonged holding of the melt at 1650°C and by optimization of the vacuum-arc heating, deformation, and heat treatment, in the light of the structural changes in the experimental samples of solid metal. © 2013 Allerton Press, Inc.

Author keywords:

cast metal; grain structure; high-temperature melt treatment; mechanical properties; melt; physical properties; solidification; structural transformations

Index keywords:

Alloy structures; High temperature; High-temperature treatment; Industrial adoption; Long-term strength; Melt treatments; Product yields; Structural transformation; Crystal microstructure; Grain size

DOI:

10.3103/S0967091213090155

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891326857&doi=10.3103%2fS0967091213090155&partnerID=40&md5=cf466781a2ccf61d827d1c6fb3558218

Соавторы в МНС:

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Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891326857&doi=10.3103%2fS0967091213090155&partnerID=40&md5=cf466781a2ccf61d827d1c6fb3558218
Affiliations	Ural Federal University, Yekaterinburg, Russian Federation; OAO Zlatoustovskii Metallurgicheskii Zavod, Chelyabinsk, Russian Federation
Author Keywords	cast metal; grain structure; high-temperature melt treatment; mechanical properties; melt; physical properties; solidification; structural transformations
References	Baum, B.A., Khasin, G.V., Tyagunov, G.V., (1984) Zhidkaya Stal, , (Liquid Steel), Moscow: Metallurgiya; Baryshev, E.E., Tyagunov, A.G., Stepanova, N.N., (2010) Vliyanie Struktury Rasplava Na Svoistva Zharoprochnykh Splavov V Tverdom Sostoyanii, , (Influence of the Melt Structure on the Properties of Solid Heat-Resistant Alloys), Yekaterinburg: UrO RAN; Baum, B.A., Tyagunov, G.V., Baryshev, E.E., Tsepelev, V.S., (1996) Stal, pp. 16-20
Correspondence Address	Tyagunov, A. G.; Ural Federal University, Yekaterinburg, Russian Federation
Language of Original Document	English
Abbreviated Source Title	Steel Transl.
Source	Scopus