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ODS EUROFER Steel Strengthened by Y-(Ce, Hf, La,\nSc, and Zr) Complex Oxides
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SYSNO ASEP 0510160 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title ODS EUROFER Steel Strengthened by Y-(Ce, Hf, La,
Sc, and Zr) Complex OxidesAuthor(s) Husák, Roman (UFM-A)
Hadraba, Hynek (UFM-A) RID, ORCID
Chlup, Zdeněk (UFM-A) RID, ORCID
Heczko, Milan (UFM-A) ORCID
Kruml, Tomáš (UFM-A) RID, ORCID
Puchý, V. (SK)Number of authors 6 Article number 1148 Source Title Metals. - : MDPI
Roč. 9, č. 11 (2019)Number of pages 14 s. Language eng - English Country CH - Switzerland Keywords oxide dispersion-strengthened steel ; low-activation steel ; mechanical alloying ; spark plasma sintering ; complex oxide Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GA17-23964S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFM-A - RVO:68081723 UT WOS 000504411600016 EID SCOPUS 85076803877 DOI 10.3390/met9111148 Annotation Oxide dispersion-strengthened (ODS) materials contain homogeneous dispersions of
temperature-stable nano-oxides serving as obstacles for dislocations and further pinning of grain
boundaries. The strategy for dispersion strengthening based on complex oxides (Y-Hf, -Zr, -Ce, -La)
was developed in order to refine oxide dispersion to enhance the dispersion strengthening e ect.
In this work, the strengthening of EUROFER steel by complex oxides based on Y and elements of
the IIIB group (lanthanum, scandium) and IVB group (cerium, hafnium, zirconium) was explored.
Interparticle spacing as a dispersoid characteristic appeared to be an important factor in controlling the
dispersion strengthening contribution to the yield strength of ODS EUROFER steels. The dispersoid
size and average grain size of ODS EUROFER steel were altered in the ranges of 5–13 nm and
0.6–1.7 m, respectively. Using this strategy, the yield strength of the prepared alloys varied between
550 MPa and 950 MPa depending on the doping elementWorkplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2020 Electronic address https://www.mdpi.com/2075-4701/9/11/1148/htm
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