Results 181 to 190 of about 2,274 (219)

Nitrogen-induced hardening in an austenitic CrFeMnNi high-entropy alloy (HEA) [PDF]

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2021
Abstract Nitrogen is a well-known gamma-stabiliser in austenitic steels, also responsible for significant solid solution hardening of these materials. Yet, only few papers have studied its impact on austenitic high-entropy alloy (HEA) matrixes. This study focuses on a cobalt-free, non equimolar CrFeMnNi HEA doped with nitrogen. A series of alloys was
Xavier Boulnat, Anna Fraczkiewicz
exaly   +4 more sources

Mechanical Properties of Nanostructured CoCrFeNiMn High-Entropy Alloy (HEA) Coating [PDF]

Frontiers in Materials, 2018
An equiatomic CoCrFeMnNi high-entropy alloy (HEA) thin film coating has been successfully developed by high-vacuum Radio Frequency (RF) magnetron sputtering. The deposition of a smooth and homogenous thin film with uniformly distributed equiaxed nanograins (grain size ~ 10 nm) was achieved through this technique.
Libo Gao, Yang Lu, Chaoqun Dang
exaly   +3 more sources

High entropy alloy (HEA) coatings for tribological applications - a review

Results in Engineering
High entropy alloy (HEA) coatings have garnered significant attention owing to their outstanding mechanical and tribological properties, as well as their resistance to high-temperature oxidation. These coatings consist of multiple principal elements, distributed in roughly equal atomic percentages.
Nasirudeen Ogunlakin, Vinoy Thomas, Lakshmi V Nair   +2 more
exaly   +3 more sources

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Superconductivity in high-entropy alloys (HEA)

2023
The proposed project concerns the study of superconducting high entropy alloys (HEAs). HEAs are loosely defined as solid solution alloys that contain more than five principal elements in equal or near equal atomic percent. The concept of high entropy introduces a new path of developing advanced materials with unique properties, which cannot be achieved
openaire   +1 more source

Recent progress on the development of high entropy alloys (HEAs) for solid hydrogen storage: A review

International Journal of Hydrogen Energy, 2022
High entropy alloys (HEA) represent a kind of materials with unique structural and functional properties, and have attracted wide attentions in many fields including hydrogen storage. Due to the huge diversity in the composition of HEAs, novel hydrogen storage materials with superior comprehensive performance are expected to be developed following the ...
Fusheng Yang, Jing Wang, Yang Zhang, Zhen Wu, Zaoxiao Zhang, Fengqi Zhao, Jacques Huot, Jasmina Grobivć Novaković, Nikola Novaković   +8 more
openaire   +2 more sources

High Entropy Alloy (HEA) Bond Coats for Thermal Barrier Coatings (TBCs)—A Review

International Thermal Spray Conference, 2023
Abstract Due to the aggressive operation conditions of turbine hot sections, protective coatings are required to provide oxidation and hot corrosion resistance for superalloy components. Thermal barrier coatings (TBCs) are comprised of a ceramic top coat and a metallic bond coat (BC) and are typically used as thermal protection systems ...
Shahbazi, H., Vakilifard, H., Nair, R. B., Liberati, A. C., Moreau, C., Lima, R. S.   +5 more
openaire   +2 more sources

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films [PDF]

Coatings, 2017
The HEA-CoCrFeNiAl0.3 thin film in this study has been successfully developed by radio frequency (RF) magnetron sputtering to meet the increasing demand in engineering applications. Its microstructure and surface profile were investigated accordingly.
Hongti Zhang, Libo Gao, Yang Lu
exaly   +2 more sources

Cyclic Plasticity of CoCrFeMnNi High-Entropy Alloy (HEA): A Molecular Dynamics Simulation

International Journal of Applied Mechanics, 2021
The CoCrFeMnNi high-entropy alloy (HEA) is a potential structural material, whose cyclic plasticity is essential for its safety assessment in service. Here, the effects of twin boundaries (TBs) and temperature on the cyclic plasticity of CoCrFeMnNi HEA were studied by the molecular dynamics (MD) simulation.
Shi, M., Lu, X., Shuang, S., Wang, Z., Xiong, Q., Kang, G., Zhang, X.   +6 more
openaire   +2 more sources

A Brief Review on High Entropy Alloys (HEAs)

V Seven International Multidisciplinary Congress
The demand for materials with improved mechanical properties at a relatively low cost is increasing. With regard to metallic materials, metallic alloys represent the most representative branch. Although several conventional alloys have well-established phase diagrams and well-known microstructures and properties, they intrinsically have certain ...
Raphael Basilius Pires Nonato, Thomaz Augusto Guisard Restivo   +1 more
openaire   +1 more source

Deposition of FeCoNiCrMn high entropy alloy (HEA) coating via cold spraying

Journal of Materials Science and Technology, 2019
Abstract High entropy alloys (HEAs) are of great interest in the community of materials science and engineering due to their unique phase structure. They are constructed with five or more principal alloying elements in equimolar or near-equimolar ratio. Therefore, HEAs can derive their performance from multiple principal elements rather than a single
Shuo Yin, Rocco Lupoi, Wenya Li
exaly   +2 more sources