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Development of microstructure and properties within oxide dispersion strengthened steel directly consolidated by hot rotary swaging
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SYSNO ASEP 0577266 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Development of microstructure and properties within oxide dispersion strengthened steel directly consolidated by hot rotary swaging Author(s) Kocich, R. (CZ)
Kunčická, Lenka (UFM-A) ORCID
Benc, M. (CZ)Number of authors 3 Article number 135276 Source Title Materials Letters. - : ELSEVIER SCIENCE BV - ISSN 0167-577X
Roč. 353, DEC (2023)Number of pages 4 s. Language eng - English Country NL - Netherlands Keywords Rotary swaging ; Direct consolidation ; Oxide dispersion strengthening ; Ferritic steel ; Microstructure Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GX21-02203X GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 001082221200001 EID SCOPUS 85172317298 DOI https://doi.org/10.1016/j.matlet.2023.135276 Annotation Steels strengthened with fine oxides maintain favourable mechanical properties at high temperatures. This unique study evaluates the effects of direct consolidation of mechanically alloyed powders of ferritic steel and Y2O3 nanooxides by hot rotary swaging (multiple swaging ratios) on microstrutcures and mechancial properties of final rods. Direct consolidation of the steel powder by the proposed method was successful at the swaging ratio 1.0. However, the quality of consolidation improved with increasing the swaging ratio to 1.4, and finally to 1.8 (no visible pores). The microstructure of the rod processed with swaging ratio 1.8 exhibited homogeneous dispersion of oxide particles and featured ultra-fine (UF) grains, its average Vickers microhardness exceeded 700 HV1. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S0167577X23014611?via%3Dihub
Number of the records: 1