| Title: | Enhanced performance of austenitic oxide dispersion-strengthened 316L steel: a study on ▫$Y_2O_3$▫ reinforcement and corrosion behaviour |
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| Authors: | ID Pokorný, Jan (Author)
ID Kubásek, Jiří (Author)
ID Donik, Črtomir (Author)
ID Nečas, David (Author)
ID Hybášek, Vojtěch (Author)
ID Fojt, Jaroslav (Author)
ID Dobkowska, Anna (Author)
ID Paulin, Irena (Author)
ID Čapek, Jaroslav (Author)
ID Godec, Matjaž (Author) |
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| Files: |  PDF - Presentation file, download (10,37 MB)
MD5: 89561F23A4C878D025E0621EDCC08B2C
 URL - Source URL, visit https://www.mdpi.com/1996-1944/18/3/641
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IMT - Institute of Metals and Technology
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| Abstract: | This study explores the mechanical and corrosion properties of yttria-reinforced 316L stainless steel. Powder precursor materials were prepared using mechanical alloying. Varying yttria (Y2O3) contents (1, 3, and 5 wt%) were used to assess its impact on the steel’s properties. X-ray diffraction and scanning electron microscopy confirmed the successful dispersion of Y2O3 within the matrix, with the formation of chromium carbides during spark plasma sintering (SPS). The mechanical properties, including hardness and compressive yield strength, improved with increasing Y2O3 contents, with the highest strength observed in the 316L-5Y2O3 sample. However, corrosion resistance decreased with higher yttria concentrations. The 3 wt% Y2O3 sample exhibited the highest corrosion rate due to localized corrosion in areas enriched with oxide particles and chromium carbides. Electrochemical testing revealed that carbide formation and Cr-depleted regions from SPS processing contributed to the corrosion behaviour. These findings suggest that while yttria reinforcement enhances mechanical strength, optimizing the Y2O3 content and processing methods is crucial to balance both mechanical and corrosion performance in ODS 316L stainless steel. |
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| Keywords: | mechanical milling, SPS, 316L, austenitic stainless steel, yttria, ODS steel, corrosion, EPR-SL |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.02.2025 |
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| Publisher: | MDPI |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 1-15 |
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| Numbering: | Vol. 18, iss. 3, [article no.] 641 |
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| Source: | Švica |
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| PID: | 20.500.12556/DiRROS-21405  |
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| UDC: | 620.1:669.14 |
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| ISSN on article: | 1996-1944 |
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| DOI: | 10.3390/ma18030641 |
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| COBISS.SI-ID: | 224698371 |
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| Copyright: | © 2025 by the authors |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 31. 1. 2025;
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| Publication date in DiRROS: | 31.01.2025 |
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| Views: | 661 |
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| Downloads: | 443 |
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| Metadata: |    |
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