High-Entropy Eutectic Composites with High Strength and Low Young's Modulus

Tapabrata Maity; Konda Gokuldoss Prashanth; Özge Balcı; Grzegorz Cieślak; Maciej Spychalski; Tadeusz Kulik; Jürgen Eckert

doi:10.1002/mdp2.211

High-Entropy Eutectic Composites with High Strength and Low Young's Modulus

Tapabrata Maity, Konda Gokuldoss Prashanth, Özge Balcı, Grzegorz Cieślak, Maciej Spychalski, Tadeusz Kulik, Jürgen Eckert

Lehrstuhl für Materialphysik (430)

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Begutachtung

Abstract

Recent studies on Co–Cr–Fe–Ni–Nbx (x = molar ratio) high-entropy alloys (HEAs) have revealed that high-pressure torsion (HPT) induced severe straining improves the load-bearing ability of eutectic HEAs. Nanoindentation using a Berkovich indenter was employed to investigate the influence of severe straining on the rate-dependent strength responses in eutectic, proeutectic, and single-phase Co–Cr–Fe–Ni–Nbx HEAs. The results reveal that the nature of the microstructure evolution after severe straining significantly affects Young's modulus and the yield strength in eutectic Co–Cr–Fe–Ni–Nb0.65. The excellent combination of high strength with lower Young's modulus is crucial for opening new sights in lamellar eutectics for possible application as next-generation advanced materials.

Originalsprache	Englisch
Aufsatznummer	e211
Seitenumfang	8
Fachzeitschrift	Material Design and Processing Communications
Jahrgang	2021
Ausgabenummer	3
Frühes Online-Datum	29 Okt. 2020
DOIs	https://doi.org/10.1002/mdp2.211
Publikationsstatus	Veröffentlicht - 2021

Bibliographische Notiz

Funding Information:
The authors would like to gratefully acknowledge Peter Kutlesa and Silke Modritsch for their help with high-pressure torsion experiments and metallographic sample preparation, respectively. Support from OeAD-GmbH through project number PL 09/2017 is acknowledged. J.E. acknowledges support through Ministry of Science and Higher Education of the Russian Federation in the framework of the Increase Competitive Program of NUST ?MISiS? (No. K2-2020-020). The authors would like to thank Ko? University Surface Science and Technology Center (KUYTAM) for instrumental support. The authors also would like to thank Polish Ministry of Science and Higher Education for offering the bilateral Polish-Austrian cooperation instrument (project # DWM.WKE.183.109.2016). In addition the financial support from European Regional Development Fund is acknowledged through the funding of the project ASTRA6-6.

Publisher Copyright:
© 2020 John Wiley & Sons, Ltd.

Zugriff auf Dokument

10.1002/mdp2.211

Andere Dateien und Links

Verknüpfung zur Publikation in Scopus

Dieses zitieren

@article{dc29cda141d4492586c574607eb29bb1,

title = "High-Entropy Eutectic Composites with High Strength and Low Young's Modulus",

abstract = "Recent studies on Co–Cr–Fe–Ni–Nbx (x = molar ratio) high-entropy alloys (HEAs) have revealed that high-pressure torsion (HPT) induced severe straining improves the load-bearing ability of eutectic HEAs. Nanoindentation using a Berkovich indenter was employed to investigate the influence of severe straining on the rate-dependent strength responses in eutectic, proeutectic, and single-phase Co–Cr–Fe–Ni–Nbx HEAs. The results reveal that the nature of the microstructure evolution after severe straining significantly affects Young's modulus and the yield strength in eutectic Co–Cr–Fe–Ni–Nb0.65. The excellent combination of high strength with lower Young's modulus is crucial for opening new sights in lamellar eutectics for possible application as next-generation advanced materials.",

keywords = "eutectic microstructure, high entropy alloys, high pressure torsion, nanoindentation, severe plastic deformation, Young's modulus",

author = "Tapabrata Maity and Prashanth, {Konda Gokuldoss} and {\"O}zge Balcı and Grzegorz Cie{\'s}lak and Maciej Spychalski and Tadeusz Kulik and J{\"u}rgen Eckert",

note = "Publisher Copyright: {\textcopyright} 2020 John Wiley & Sons, Ltd.",

year = "2021",

doi = "10.1002/mdp2.211",

language = "English",

volume = "2021",

journal = "Material Design and Processing Communications",

issn = "2577-6576",

publisher = "John Wiley & Sons, USA",

number = "3",

}

TY - JOUR

T1 - High-Entropy Eutectic Composites with High Strength and Low Young's Modulus

AU - Maity, Tapabrata

AU - Prashanth, Konda Gokuldoss

AU - Balcı, Özge

AU - Cieślak, Grzegorz

AU - Spychalski, Maciej

AU - Kulik, Tadeusz

AU - Eckert, Jürgen

PY - 2021

Y1 - 2021

N2 - Recent studies on Co–Cr–Fe–Ni–Nbx (x = molar ratio) high-entropy alloys (HEAs) have revealed that high-pressure torsion (HPT) induced severe straining improves the load-bearing ability of eutectic HEAs. Nanoindentation using a Berkovich indenter was employed to investigate the influence of severe straining on the rate-dependent strength responses in eutectic, proeutectic, and single-phase Co–Cr–Fe–Ni–Nbx HEAs. The results reveal that the nature of the microstructure evolution after severe straining significantly affects Young's modulus and the yield strength in eutectic Co–Cr–Fe–Ni–Nb0.65. The excellent combination of high strength with lower Young's modulus is crucial for opening new sights in lamellar eutectics for possible application as next-generation advanced materials.

AB - Recent studies on Co–Cr–Fe–Ni–Nbx (x = molar ratio) high-entropy alloys (HEAs) have revealed that high-pressure torsion (HPT) induced severe straining improves the load-bearing ability of eutectic HEAs. Nanoindentation using a Berkovich indenter was employed to investigate the influence of severe straining on the rate-dependent strength responses in eutectic, proeutectic, and single-phase Co–Cr–Fe–Ni–Nbx HEAs. The results reveal that the nature of the microstructure evolution after severe straining significantly affects Young's modulus and the yield strength in eutectic Co–Cr–Fe–Ni–Nb0.65. The excellent combination of high strength with lower Young's modulus is crucial for opening new sights in lamellar eutectics for possible application as next-generation advanced materials.

KW - eutectic microstructure

KW - high entropy alloys

KW - high pressure torsion

KW - nanoindentation

KW - severe plastic deformation

KW - Young's modulus

UR - http://www.scopus.com/inward/record.url?scp=85117026605&partnerID=8YFLogxK

U2 - 10.1002/mdp2.211

DO - 10.1002/mdp2.211

M3 - Article

AN - SCOPUS:85117026605

SN - 2577-6576

VL - 2021

JO - Material Design and Processing Communications

JF - Material Design and Processing Communications

IS - 3

M1 - e211

ER -