RT Journal Article
SR Electronic
A1 Kratochvíl, Petr
A1 Průša, Filip
T1 CoCrFeNiTi High Entropy Alloy Prepared via Mechanical Alloying and Spark Plasma Sintering
JF Manufacturing Technology Journal
YR 2022
VO 22
IS 4
SP 423
OP 428
DO 10.21062/mft.2022.049
UL https://journalmt.com/artkey/mft-202204-0004.php
AB Mechanical alloying and subsequent compaction with spark plasma sintering was chosen for the fabrication of investigated CoCrFeNiTi alloy method. The alloy was characterized in terms of chemical and phase composition with X-ray fluorescence spectroscopy and X-ray diffraction spectrometry, respectively. The microstructure was examined using light microscopy and scanning electron microscopy equipped with an energy dispersion spectrometer. The alloy showed an ultra-fine grained uniform microstructure composed mainly of an FCC solid solution with a volume fraction of HCP Laves phases. Regarding mechanical properties, the prepared specimen reached an ultimate compressive strength of 1340 MPa with the hardness of 757 HV 30. The wear rate of the sample reached 1.19 . 10-4 mm3.N-1.m-1 showing traces of adhesive-abrasion wear mechanism.