Related Experiment Video
Updated: Jul 19, 2025
08:32
Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
Published on: May 14, 2016
12.5K
Multifunctional High Entropy Alloys Enabled by Severe Lattice Distortion.
Hang Wang1, Quanfeng He1,2, Xiang Gao1
1Department of Mechanical Engineering, College of Engineering, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong, 999077, China.
Advanced Materials (Deerfield Beach, Fla.)
|August 10, 2023
Summary
High entropy alloys (HEAs) with severe lattice distortion offer unique mechanical and physical properties. This review covers models, methods, and impacts of distorted lattices in HEAs for future research.
Area of Science:
- Materials Science
- Solid-State Physics
Background:
- High entropy alloys (HEAs) have garnered significant interest since 2004.
- HEAs incorporate multiple principal elements into a single lattice, creating unique crystal structures.
- These alloys exhibit exceptional structural and functional properties not found in conventional alloys.
Purpose of the Study:
- To provide an extensive overview of multifunctional HEAs with severe lattice distortion.
- To cover theoretical models, experimental, and computational methods for lattice distortion.
- To highlight the impact of severe lattice distortion on HEA properties.
Main Methods:
- Review of theoretical models for lattice distortion.
- Analysis of experimental and computational characterization techniques.
- Compilation of data on the effects of lattice distortion on alloy properties.
Main Results:
- Severe lattice distortion in HEAs leads to a unique combination of mechanical and physical properties.
- Understanding lattice distortion is key to unlocking HEAs' full potential.
- Multifunctional HEAs with distorted lattices show promise for advanced applications.
Conclusions:
- This review consolidates current knowledge on lattice distortion in HEAs.
- Further research into distorted lattices is crucial for advancing HEA design.
- HEAs with severe lattice distortion represent a promising frontier in materials science.
More Related Videos
Related Concept Videos
02:37Metallic Solids
18.5K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
18.5K
01:22Generalized Hooke's Law
1.1K
The generalized Hooke's Law is a broadened version of Hooke's Law, which extends to all types of stress and in every direction. Consider an isotropic material shaped into a cube subjected to multiaxial loading. In this scenario, normal stresses are exerted along the three coordinate axes. As a result of these stresses, the cubic shape deforms into a rectangular parallelepiped. Despite this deformation, the new shape maintains equal sides, and there is a normal strain in the direction of the...
1.1K
02:54Trends in Lattice Energy: Ion Size and Charge
24.0K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
24.0K
01:15Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
291
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
291
01:19Complexation Equilibria: The Chelate Effect
553
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
553