PREDICTION OF FORMED PHASES IN TWO HIGH ENTROPY SYSTEMS

1 MAZANCOVÁ Eva
Co-authors:
2 SAKSL Karel 1 KUČERA Pavel
Institutions:
1 VŠB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Tř. 17. listopadu 15/ 2172, 708 33 Ostrava, Czech Republic, EU, eva.mazancova@vsb.cz, paul.kucera@seznam.cz
2 Institute of Material Research of SAS Watsonova 47, 040 01 Košice, Slovak Republic, EU, ksaksl@imr.saske.sk
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
918-923
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
53 views / 13 downloads
Abstract

Work deals with phase formation of eight high entropy alloys of FeCuxCr1-xMnNi type and of three alloys of FexCuCrMnNi system with high entropy effect. Predicted compositions of phases using Ni and Cr equivalents and by use of valence electron concentration are compared with real finding of presented phases in all aforesaid systems. Types of phases were detected by hard X-ray synchrotron micro-diffraction. With increasing Cr content in FeCuxCr1-xMnNi system double FCC phases changed into double FCC with BCC phases under simultaneously increase of yield stress. In FexCuCrMnNi system with atypical higher Fe content double FCC phases were detected with their different volume fractions. With increasing Fe content as a BCC stabilizer a rise of yield stress was detected. In both investigated systems, predicted results of formed phases partially differed from founded phases using synchrotron.

Keywords: FeCuxCr1-xMnNi high entropy system, FexCuCrMnNi high entropy system, Ni – Cr equivalents, valence electron concentration, phases composition

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