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Title: | Production of heat-resistant EP220 and EP929 alloys by high-temperature treatment of melt |
Authors: | Tyagunov, A. G. Baryshev, E. E. Tyagunov, G. V. Mikhailov, V. B. |
Issue Date: | 2013 |
Citation: | Production of heat-resistant EP220 and EP929 alloys by high-temperature treatment of melt / A. G. Tyagunov, E. E. Baryshev, G. V. Tyagunov [et al.] // Steel in Translation. — 2013. — Vol. 43. — № 9. — P. 557-560. |
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. |
Keywords: | CAST METAL GRAIN STRUCTURE HIGH-TEMPERATURE MELT TREATMENT MECHANICAL PROPERTIES MELT PHYSICAL PROPERTIES SOLIDIFICATION STRUCTURAL TRANSFORMATIONS ALLOY STRUCTURES HIGH TEMPERATURE HIGH-TEMPERATURE TREATMENT INDUSTRIAL ADOPTION LONG-TERM STRENGTH MELT TREATMENTS PRODUCT YIELDS STRUCTURAL TRANSFORMATION CRYSTAL MICROSTRUCTURE GRAIN SIZE AND SHAPE LIQUIDS MECHANICAL PROPERTIES MELTING PHYSICAL PROPERTIES SOLIDIFICATION ALLOYS |
URI: | http://elar.urfu.ru/handle/10995/27350 |
SCOPUS ID: | 84891326857 |
PURE ID: | 869009 |
ISSN: | 0967-0912 |
DOI: | 10.3103/S0967091213090155 |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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