Preparation of TiAl15Si15 intermetallic alloy by mechanical alloying and the spark plasma sintering method

0505343 - FZÚ 2020 RIV GB eng J - Journal Article
Knaislová, A. - Linhart, J. - Novák, P. - Průša, F. - Kopeček, Jaromír - Laufek, F. - Vojtěch, D.
Preparation of TiAl15Si15 intermetallic alloy by mechanical alloying and the spark plasma sintering method.
Powder Metallurgy. Roč. 62, č. 1 (2019), s. 54-60. ISSN 0032-5899. E-ISSN 1743-2901
R&D Projects: GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088; GA ČR GBP108/12/G043
Grant - others:FUNBIO(XE) CZ.2.16/3.1.00/21568
Institutional support: RVO:68378271
Keywords : powder metallurgy * mechanical alloying * spark plasma sintering * intermetallics * microstructure * phase composition * hardness
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.793, year: 2019
Method of publishing: Limited access
https://doi.org/10.1080/00325899.2019.1569812

This work is devoted to the preparation of alloys based on intermetallic compounds in the Ti–Al–Si system by powder metallurgy using mechanical alloying and the spark plasma sintering (SPS) method. The aim was to describe the formation of intermetallic phases during mechanical alloying of TiAl15Si15 (wt-%) alloy and to consolidate the powder prepared by optimised conditions. Phase composition, microstructure and hardness of compacted alloy were determined. Four hours of mechanical alloying is sufficient time for preparation of pure elements free material composed only of intermetallic phases. After consolidation, the TiAl15Si15 alloy has a homogeneous structure composed of silicide (Ti5Si3) in aluminide (TiAl) matrix. The hardness of the material reaches 865 ± 42 HV 5.
Permanent Link: http://hdl.handle.net/11104/0296790