High-Entropy Alloys: A Critical Review

By Ming-Hung Tsai, Jien‐Wei Yeh. 2014

3,009 citations recorded by the source corpus.

High-entropy alloys (HEAs) are alloys with five or more principal elements. Due to the distinct design concept, these alloys often exhibit unusual properties. Thus, there has been significant interest in these materials, leading to an emerging yet exciting new field. This paper briefly reviews some critical aspects of HEAs, including core effects, phases and crystal structures, mechanical properties, high-temperature properties, structural stabilities, and corrosion behaviors. Current challenges and important future directions are also pointed out.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/36b623863f581ada8dcfa389f9bbab57db7d2d28

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

1. Daniel B. Miracle
2. Oleg N. Senkov
3. Dierk Raabe
4. W. A. Curtin
5. R. Ritchie
6. N. Jones
7. E. Pickering
8. Fritz Körmann

In Mechanical Engineering

1. Daniel B. Miracle
2. Dierk Raabe
3. Oleg N. Senkov
4. W. A. Curtin
5. R. Ritchie
6. C. Tasan
7. J. Couzinié
8. N. Jones

Citations in the corpus

• Mechanical properties of high-entropy alloys with emphasis on face-centered cubic alloys (2019, methodology): “Yeh et al. [3], in their classic paper, first proposed the notion of the design of an alloy with a series of elements in equimolar or near-equimolar ratios based on the concept of a high configurational (or mixing) entropy.”
• Hume-Rothery for HEA classification and self-organizing map for phases and properties prediction (2017, background): “Scientific issues and challenges have been discussed including aspects of definition/terminology, phase formation, microstructure and phase stability, strengthening mechanisms, and high temperature properties, as well as the density and cost [4-10].”
• Study of the surface oxides and corrosion behaviour of an equiatomic CoCrFeMnNi high entropy alloy by XPS and ToF-SIMS (2020, methodology): “The characteristic high resolution XPS 2p core level spectra obtained for a native oxide film formed on the equiatomic CoCrFeMnNi HEA are presented on Fig.1(b)-(f).”
• Thermodynamic instability of a nanocrystalline, single-phase TiZrNbHfTa alloy and its impact on the mechanical properties (2018, background): “High-entropy alloys (HEAs) are multi-principal element alloys, most commonly defined as having at least five different alloying elements varying in chemical composition from 5 at% to 35 at% [1,2].”