The effect of heat treatment on the microstructure and mechanical properties of heat-resistant ferritic–martensitic steel EK-181

The features of carbide subsystem of EK-181 steel after different heat treatments were investigated. The heat treatments were identified that reduce the density of coarse carbides M sub(23)C sub(6), increase the density of nanoparticles V(CN) and provide higher values of short-term high-temperature...

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Bibliographic Details
Published in:Journal of nuclear materials 2014-12, Vol.455 (1-3), p.665-668
Main Authors: Litovchenko, I Yu, Polekhina, N A, Tyumentsev, A N, Astafurova, E G, Chernov, V M, Leontyeva-Smirnova, M V
Format: Article
Language:English
Subjects:
Carbides
Density
Dispersion hardening
Heat treatment
Nanoparticles
Nuclear engineering
Steels
Tensile strength
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Summary:The features of carbide subsystem of EK-181 steel after different heat treatments were investigated. The heat treatments were identified that reduce the density of coarse carbides M sub(23)C sub(6), increase the density of nanoparticles V(CN) and provide higher values of short-term high-temperature tensile strength. The possibility of increasing the strength of EK-181 steel by choosing appropriated thermal treatments providing high efficiency of dispersion hardening are discussed.
ISSN:0022-3115
DOI:10.1016/j.jnucmat.2014.08.056