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Physics of Metals and Metallography

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01.12.2018 | STRENGTH AND PLASTICITY

Oxide-Dispersion Strengthened Radiation-Resistant Steels

verfasst von: V. V. Sagaradze, K. A. Kozlov, N. V. Kataeva

Erschienen in: Physics of Metals and Metallography | Ausgabe 13/2018

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Abstract

The better characteristics of the long-term strength of the EP-450-ODS (oxide dispersion strengthened) steel are determined compared to the well-known oxygen-free reactor steels. Using the Mössbauer analysis of the deformed powder mixture ⁵⁶Fe₃O₄ + ⁵⁷Fe, the possibility of the deformation-induced dissolution of iron oxides in the steel matrix, which makes it possible to obtain high quality ODS steels in the process of subsequent high-temperature annealing (sintering), is shown. The enhanced strength characteristics are obtained in recrystallized samples of ODS iron (YS_0.2 ~ 570 MPa, UTS ~ 632 MPa) in the absence of any other alloying elements except for oxygen of air.

Vorheriger Artikel Development of High-Strength, Fine, and Ultrafine-Grained Shape Memory Alloys

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Titel: Oxide-Dispersion Strengthened Radiation-Resistant Steels
verfasst von: V. V. Sagaradze
K. A. Kozlov
N. V. Kataeva
Publikationsdatum: 01.12.2018
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 13/2018
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X18130112

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