Publication detail
Influence of substitution of Cr by Cu on phase equilibria and microstructures in the Fe-Ni-Co-Cr high-entropy alloys
ZÁDĚRA, A. SOPOUŠEK, J. BURŠÍK, J. ČUPERA, J. BROŽ, P. JAN, V.
English title
Influence of substitution of Cr by Cu on phase equilibria and microstructures in the Fe-Ni-Co-Cr high-entropy alloys
Type
journal article in Web of Science
Language
en
Original abstract
The article describes how substitution of chromium by copper affects phase equilibria in Fe-Ni-Co-Cr highentropy alloy. The alloys with copper content ranging from 0 to 20 % (at.) of Cu were prepared. The alloys were equilibrated at 900, 800, 700, and 650 C-degrees. The samples were investigated by electron microscopy, EDX spectroscopy, and EBSD method. The face-centred cubic phases have only occurred in equilibrated alloys: austenite matrix, copper-rich FCC(Cu) phase, and regions containing these phases. The compositions of equilibrated samples at annealing temperatures are given. Fine microstructures including a semicoherent FCC phase rich in Cu and an FCC phase including the main magnetic elements (Fe, Co, Ni) were formed. The experimental results were compared with the calculated phase equilibria obtained by the CALPHAD method.
English abstract
The article describes how substitution of chromium by copper affects phase equilibria in Fe-Ni-Co-Cr highentropy alloy. The alloys with copper content ranging from 0 to 20 % (at.) of Cu were prepared. The alloys were equilibrated at 900, 800, 700, and 650 C-degrees. The samples were investigated by electron microscopy, EDX spectroscopy, and EBSD method. The face-centred cubic phases have only occurred in equilibrated alloys: austenite matrix, copper-rich FCC(Cu) phase, and regions containing these phases. The compositions of equilibrated samples at annealing temperatures are given. Fine microstructures including a semicoherent FCC phase rich in Cu and an FCC phase including the main magnetic elements (Fe, Co, Ni) were formed. The experimental results were compared with the calculated phase equilibria obtained by the CALPHAD method.
Keywords in English
High-entropy alloys; Phase separation; Spinodal decomposition; Phase equilibria; CALPHAD
Released
16.08.2024
Publisher
ELSEVIER SCI LTD
Location
London
ISSN
0966-9795
Volume
174
Number
November
Pages from–to
1–10
Pages count
10
BIBTEX
@article{BUT189737,
author="Antonín {Záděra} and Jiří {Sopoušek} and Jiří {Buršík} and Jan {Čupera} and Pavel {Brož} and Vít {Jan},
title="Influence of substitution of Cr by Cu on phase equilibria and microstructures in the Fe-Ni-Co-Cr high-entropy alloys",
year="2024",
volume="174",
number="November",
month="August",
pages="1--10",
publisher="ELSEVIER SCI LTD",
address="London",
issn="0966-9795"
}