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Title: High-entropy alloys in hexagonal close-packed structure

Journal Article · · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
 [1];  [2];  [2];  [3];  [1]
  1. National Energy Technology Lab. (NETL), Albany, OR (United States)
  2. Louisiana State Univ., Baton Rouge, LA (United States)
  3. Taiyuan Univ. of Technology, Taiyuan (China)

The microstructures and properties of high-entropy alloys (HEAs) based on the face-centered cubic and body-centered cubic structures have been studied extensively in the literature, but reports on HEAs in the hexagonal close-packed (HCP) structure are very limited. Using an efficient strategy in combining phase diagram inspection, CALPHAD modeling, and ab initio molecular dynamics simulations, a variety of new compositions are suggested that may hold great potentials in forming single-phase HCP HEAs that comprise rare earth elements and transition metals, respectively. Lastly, experimental verification was carried out on CoFeReRu and CoReRuV using X-ray diffraction, scanning electron microscopy, and energy dispersion spectroscopy.

Research Organization:
National Energy Technology Lab. (NETL), Albany, OR (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FE0004000
OSTI ID:
1338297
Report Number(s):
CONTR-PUB-146; PII: 3091
Journal Information:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Vol. 47, Issue 7; ISSN 1073-5623
Publisher:
ASM InternationalCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 121 works
Citation information provided by
Web of Science

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Cited By (26)

Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625 journal August 2019
Enhanced Relative Slip Distance in Gas-Tungsten-Arc-Welded Al0.5CoCrFeNi High-Entropy Alloy journal May 2017
Simulation and Modeling in High Entropy Alloys journal August 2017
High pressure synthesis of a hexagonal close-packed phase of the high-entropy alloy CrMnFeCoNi journal May 2017
First-principles investigation of the micromechanical properties of fcc-hcp polymorphic high-entropy alloys journal July 2018
Development of a novel high-entropy alloy with eminent efficiency of degrading azo dye solutions journal September 2016
Rare-earth high entropy alloys with hexagonal close-packed structure journal November 2018
Elastic properties of face-centered cubic, body-centered cubic and hexagonal high entropy alloys by MaxEnt approach journal July 2018
Computational characterization of the structural and mechanical properties of Al x CoCrFeNiTi 1− x high entropy alloys journal July 2019
Computational modeling of high-entropy alloys: Structures, thermodynamics and elasticity journal October 2017
Effect of Ti substitution for Al on the cuboidal nanoprecipitates in Al 0.7 NiCoFeCr 2 high-entropy alloys journal August 2018
Size effects on plasticity in high-entropy alloys journal August 2018
High-entropy functional materials journal September 2018
Hexagonal close-packed high-entropy alloy formation under extreme processing conditions journal January 2019
Microstructure and magnetic behavior of FeCoNi(Mn–Si) x ( x = 0.5, 0.75, 1.0) high-entropy alloys journal March 2019
Combinatorial thin film screening to identify single-phase, non-equiatomic high entropy alloys in the MnFeCoNiCu system journal April 2019
MoNbTaV Medium-Entropy Alloy journal May 2016
Design of Light-Weight High-Entropy Alloys journal September 2016
Additive Manufacturing of High-Entropy Alloys: A Review journal December 2018
High-Pressure Induced Phase Transitions in High-Entropy Alloys: A Review journal March 2019
A Comparative Study on Johnson Cook, Modified Zerilli–Armstrong, and Arrhenius-Type Constitutive Models to Predict Compression Flow Behavior of SnSbCu Alloy journal May 2019
Corrosion-Resistant High-Entropy Alloys: A Review journal February 2017
A Review of Multi-Scale Computational Modeling Tools for Predicting Structures and Properties of Multi-Principal Element Alloys journal February 2019
Compositional Design of Soft Magnetic High Entropy Alloys by Minimizing Magnetostriction Coefficient in (Fe0.3Co0.5Ni0.2)100−x(Al1/3Si2/3)x System journal March 2019
High pressure synthesis of a hexagonal close-packed phase of the high-entropy alloy CrMnFeCoNi text January 2016
Effect of Si and C additions on the reaction mechanism and mechanical properties of FeCrNiCu high entropy alloy journal November 2019

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