Journal ArticleDOI
The sliding wear behaviour of CoCrFeMnNi and AlxCoCrFeNi high entropy alloys at elevated temperatures
TLDR
In this paper, a detailed characterisation of the wear tracks using electron microscopy and surface profilometry revealed a transition in wear mechanism from abrasive wear at room-temperature to oxidative and delamination wear above 600°C.About:
This article is published in Wear.The article was published on 2019-06-15. It has received 230 citations till now. The article focuses on the topics: High entropy alloys & Inconel.read more
Citations
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A novel high-entropy alloy composite coating with core-shell structures prepared by plasma cladding
TL;DR: In this article, a novel Ti(C,N)-reinforced body-centered cubic (BCC)-based Cr20Cu20Fe20Ni20Al20 high-entropy alloy (HEA) composite coating was prepared by a synchronized powder feeding plasma transferred arc (PTA) cladding.
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Effects of normal load and velocity on the dry sliding tribological behaviour of CoCrFeNiMo0.2 high entropy alloy
TL;DR: In this article, a systematic experimental study has been conducted to evaluate the sliding tribological properties of CoCrFeNiMo0.2 high entropy alloy at room temperature, and the results showed strong dependence of its friction and wear behaviours on sliding duration, normal load and velocity.
Journal ArticleDOI
Tribological behavior of an AlCoCrFeNi2.1 eutectic high entropy alloy sliding against different counterfaces
TL;DR: In this paper, the tribological behavior of the model AlCoCrFeNi2.1 eutectic high-entropy alloy (EHEA) sliding against different counterfaces including Al2O3, Si3N4, SiC ceramics and GCr15 steel at room temperature (RT), and particularly SiC at elevated temperatures were investigated.
Journal ArticleDOI
Multiscale mechanical performance and corrosion behaviour of plasma sprayed AlCoCrFeNi high-entropy alloy coatings
Ashok Meghwal,Ameey Anupam,Ameey Anupam,Vladimir Luzin,Vladimir Luzin,Christiane Schulz,Colin Hall,B.S. Murty,B.S. Murty,Ravi Sankar Kottada,Christopher C. Berndt,Andrew Siao Ming Ang +11 more
TL;DR: In this paper, equi-atomic AlCoCrFeNi HEA coatings were synthesized via atmospheric plasma spray (APS) using mechanically alloyed feedstock, and a correlation between microstructure and mechanical properties in terms of both hardness and wear were established at multiscale levels.
Journal ArticleDOI
Microstructure and wear behavior of FeCoNiCrMn high entropy alloy coating deposited by plasma spraying
TL;DR: In this article, the wear behavior of the as-sprayed and annealed FeCoNiCrMn coatings against WC-Co ball was evaluated under dry sliding condition.
References
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Journal ArticleDOI
Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
Jien-Wei Yeh,Swe-Kai Chen,Su-Jien Lin,Jon-Yiew Gan,Tsung-Shune Chin,Tsung-Shune Chin,Tao-Tsung Shun,Chun-Huei Tsau,Shou-Yi Chang +8 more
TL;DR: A new approach for the design of alloys is presented in this paper, where high-entropy alloys with multi-principal elements were synthesized using well-developed processing technologies.
Journal ArticleDOI
A critical review of high entropy alloys and related concepts
Daniel B. Miracle,Oleg N. Senkov +1 more
TL;DR: High entropy alloys (HEAs) are barely 12 years old as discussed by the authors, and the field has stimulated new ideas and inspired the exploration of the vast composition space offered by multi-principal element alloys.
Journal ArticleDOI
Microstructures and properties of high-entropy alloys
TL;DR: The concept of high entropy introduces a new path of developing advanced materials with unique properties, which cannot be achieved by the conventional micro-alloying approach based on only one dominant element as mentioned in this paper.
Journal ArticleDOI
The influences of temperature and microstructure on the tensile properties of a CoCrFeMnNi high-entropy alloy
F. Otto,F. Otto,Antonín Dlouhý,Christoph Somsen,Hongbin Bei,Gunther Eggeler,Easo P. George,Easo P. George +7 more
TL;DR: In this article, an equiatomic CoCrFeMnNi high-entropy alloy, which crystallizes in the face-centered cubic (fcc) crystal structure, was produced by arc melting and drop casting.
Journal ArticleDOI
High-entropy alloy: challenges and prospects
TL;DR: In this paper, a critical review of the recent studies aiming to address the fundamental issues related to phase formation in high-entropy alloys is provided, and novel properties of HEAs are also discussed, such as their excellent specific strength, superior mechanical performance at high temperatures, exceptional ductility and fracture toughness at cryogenic temperatures, superparamagnetism and superconductivity.