RT Journal Article
SR Electronic
A1 Knaislová, Anna
A1 Novák, Pavel
A1 Nová, Kateřina
T1 Using of Microscopy in Optimization of the Ti-Al-Si Alloys Preparation by Powder Metallurgy
JF Manufacturing Technology Journal
YR 2016
VO 16
IS 5
SP 946
OP 949
DO 10.21062/ujep/x.2016/a/1213-2489/MT/16/5/946
UL https://journalmt.com/artkey/mft-201605-0019.php
AB Automotive and aerospace industries are searching for new high-temperature structural materials with improved properties (especially resistance to oxidation, thermal stability and mechanical properties) in combination with low density. Ti-Al-Si alloys fulfill these requirements, but they are very difficult to prepare. In this work, we propose technology including Self-propagating High-temperature Synthesis (SHS), milling and following consolidation by Spark Plasma Sintering. The technology has been tested on the TiAl20Si20 alloy. Special attention was paid to microstructure and phase composition, and their changes depending on the processing stage.