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Innovative powder pre-treatment strategies for enhancing maraging steel performance
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SYSNO ASEP 0605587 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Innovative powder pre-treatment strategies for enhancing maraging steel performance Author(s) Dvorský, Drahomír (FZU-D) ORCID, RID
Nečas, D. (CZ)
de Prado, Esther (FZU-D) ORCID, RID
Duchoň, Jan (FZU-D) ORCID, RID
Svora, Petr (FZU-D) ORCID
Ekrt, Ondřej (FZU-D) ORCID
Strakosova, Angelina (FZU-D) ORCID
Kubásek, J. (CZ)
Vojtěch, D. (CZ)Number of authors 9 Article number 437 Source Title Materials. - : MDPI - ISSN 1996-1944
Roč. 18, č. 2 (2025)Number of pages 9 s. Language eng - English Country CH - Switzerland Keywords mechanical-properties ; powder metallurgy ; heat treatment ; mechanical properties ; SPS Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EH22_008/0004591 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2023051 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001404360900001 EID SCOPUS 85216107599 DOI https://doi.org/10.3390/ma18020437 Annotation Maraging steel is a high-performance material valued for its exceptional properties, making it ideal for demanding applications such as aerospace, tooling, and automotive industries, where high strength, toughness, and precision are required. These steels can be prepared by powder metallurgy techniques, which offer new processing possibilities. This paper introduces novel thermal powder pre-treatment and its impact on the final mechanical properties. Solid solution pre-treatment results in a modest improvement in strength (from 972 MPa to 1000 MPa), while the use of pre-aged powder achieves the highest strength (1316 MPa) and lowest ductility (2.6%). A self-composite material is created by mixing pre-treated powders with the same chemical composition but different properties. Such material was characterized by intermediate strength (1174 MPa) and ductility (3.1%). Although challenges such a porosity and oxidation were present, this approach allows for tuning of mechanical properties by mixing pre-treated powders, offering significant potential for advanced engineering applications. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2026 Electronic address https://hdl.handle.net/11104/0364762
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