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Mechanical and structural properties of bulk magnesium materials prepared via spark plasma sintering
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SYSNO ASEP 0546040 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mechanical and structural properties of bulk magnesium materials prepared via spark plasma sintering Author(s) Březina, M. (CZ)
Hasoňová, M. (CZ)
Fintová, Stanislava (UFM-A) ORCID
Doležal, P. (CZ)
Rednyk, Andrii (UFP-V)
Wasserbauer, J. (CZ)Number of authors 6 Article number 102569 Source Title Materials Today Communications. - : Elsevier - ISSN 2352-4928
Roč. 28, SEP (2021)Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords in-situ precipitation ; pure magnesium ; plastic-deformation ; grain-refinement ; alloy ; temperature ; mg ; extrusion ; evolution ; Magnesium powder metallurgy ; sps ; Three-point bending ; Hardness ; Microhardness ; Microstructure Subject RIV JG - Metallurgy OECD category Materials engineering Subject RIV - cooperation Institute of Plasma Physics - Metallurgy R&D Projects EF16_013/0001823 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 ; UFP-V - RVO:61389021 UT WOS 000697048000004 EID SCOPUS 85108841964 DOI 10.1016/j.mtcomm.2021.102569 Annotation Field-assisted sintering is a modern approach to novel magnesium materials preparation, however, it is unclear whether it is better to sinter green compact or loose powder. This work focuses on preparing bulk materials from loose and cold-compacted magnesium powder through a field-assisted sintering technique spark plasma sintering (SPS). Green compacts were prepared under a series of compacting pressures from 100 MPa to 500 MPa. SPS was performed at 400 degrees C, 500 degrees C, and 600 degrees C applying additional pressure of 100 MPa during the sintering process. Prepared materials were analysed regarding their microstructure, hardness, and micmhardness and through the three-point bending test and fractography. The green compacts porosity decreased with increased cold-compaction pressure. The SPS positively affected porosity and mechanical properties only in loose powder and the lowest cold-compacted green compacts. Increasing cold compaction pressure of the green compacts above 200 MPa is therefore unfavourable for further SPS processing. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S2352492821005602?via%3Dihub
Number of the records: 1