This letter proposes the theoretical design methodology based on the proportional mixing of binary eutectics for predicting novel eutectic multi-principal element alloys (EMPEAs). It was then experimentally verified by manufacturing a dual-phase eutectic Zr61.9AlTiVCr alloy having a density of 6.04 g/cc. Zirconium was identified as the eutectic forming element in this system, notably having only 3 binary eutectics in a quinary system. The alloy developed by vacuum arc melting revealed the formation of an irregular lamellar eutectic microstructure consisting of cubic and hexagonal Laves phases. The as-cast alloy had a superior hardness of HV527, with 780 MPa compressive strength. This study paves the way for designing new EMPEAs without depending on any simulation software. © 2023 Elsevier B.V.

Budaraju Srinivasa Murty

Department of Materials Science and Metallurgical Engineering

G. Talluri

M. Nagini

D. Arvindha Babu

R.S. Maurya

Indian Institute of Technology Hyderabad (IITH) is a premier institute of science and technology established in 2008. IITH has been consistently ranked in the&nbsp;<a href="https://iith.ac.in/reports/" rel="noopener noreferrer">top 10 institutes</a>&nbsp;in India for Engineering&nbsp;<a href="https://www.nirfindia.org/2021/EngineeringRanking.html" rel="noopener noreferrer" target="_blank">according to NIRF</a>&nbsp;making it one of the most coveted schools for science and technology in the country.

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Journal	Materials Letters
Publisher	Elsevier B.V.
ISSN	0167577X