Number of the records: 1
High Temperature Stability of an Al–Zr–Ti Alloy Prepared using Gas Atomization and Spark Plasma Sintering Technology
- 1.
SYSNO ASEP 0503772 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High Temperature Stability of an Al–Zr–Ti Alloy Prepared using Gas Atomization and Spark Plasma Sintering Technology Author(s) Molnárová, O. (CZ)
Málek, P. (CZ)
Veselý, J. (CZ)
Lukáč, František (UFP-V) ORCID
Chráska, Tomáš (UFP-V) RID, ORCID
Cinert, Jakub (UFP-V)Number of authors 6 Source Title Acta Physica Polonica A. - : Polska Akademia Nauk - ISSN 0587-4246
Roč. 134, č. 3 (2018), s. 876-880Number of pages 5 s. Language eng - English Country PL - Poland Keywords Grain size and shape ; Microhardness ; Plasma stability ; Spark plasma sintering ; Thermodynamic stability Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GA15-15609S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFP-V - RVO:61389021 UT WOS 000453257500060 EID SCOPUS 85058939133 DOI 10.12693/APhysPolA.134.876 Annotation The aim of this study was to prepare an aluminium alloy with high temperature stability using the powder metallurgical route. Gas atomized powder of the Al–Zr–Ti alloy was consolidated by the spark plasma sintering (SPS) technology. The fine grained structure (grain size between 2 and 3 µm) observed in the gas atomized powder was retained after sintering both at 425◦C and 550◦C. The microhardness of 49 HV observed in the gas atomized powder was increased up to about 100 HV in the SPS compacts. Precipitation of the Al3(Zr,Ti) phase during sintering can explain this strengthening. The materials stability was tested by annealing at temperatures above 450◦C. The grain size remained stable even after 10 h of annealing. A decrease in microhardness by about 20% can be attributed especially to the formation of the stable modification of the Al3(Zr,Ti) phase. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address http://przyrbwn.icm.edu.pl/APP/PDF/134/app134z3p59.pdf
Number of the records: 1