Description
Book SynopsisThis book provides a detailed overview of high entropy materials and alloys, discussing their structure, the processing of bulk and nanostructured alloys as well as their mechanical and functional properties and applications. It covers the exponential growth in research which has occurred over the last decade, discussing novel processing techniques, estimation of mechanical, functional and physical properties, and utility of these novel materials for various applications. Given the expanding scope of HEAs in ceramics, polymers, thin films and coating, this book will be of interest to material scientists and engineers alike.
Table of Contents
- Chapter 1. Historical Perspective of High Entropy: Paradigm Shift and Origin of Path Breaking Concept
- 1.1 Introduction: Alloys and Their Importance in Civilization
- 1.2 The Alloy World: Solid Solutions and Compounds
- 1.4 Solid Solutions in Alloys and Ceramics
- 1.3 Special Alloys
- 1.4 Ceramics: Oxides, Borides, Nitride and Carbides
- 1.5 The Multicomponent Materials in Metals and Ceramics
- 1.6. High Entropy Materials
- 1.7 The Scope of This Book in the Present Context
- Chapter 2. High-Entropy Materials: Basic Concepts
- 2.1 Introduction
- 2.2 High Entropy Alloys and Ceramics: Definition and Classification
- 2.3. Entropy of Mixing : It Estimation and Effects on Alloy Development
- 2.3 High Entropy Effects
- 2.4 Composition Notation
- 2.5 Thermodynamics of Multicoponent systems
- 2.6 Kinetics: Intermixing and diffusion
- Chapter 3. Phase and Microstructural Selection in High-Entropy Materials
- 3.1 Alloy Design Strategies
- 3.2 Predicting Solid Solubility from Hume-Rothery Rules
- 3.3 Solid Solution Formation in Equiatomic and Nonequiatomic HEMs
- 3.4 Mutual Solubility and Phase Formation Tendency in HEAs
- 3.5 Parametric Approaches to Predict Crystalline Solid Solution
- 3.5 CALPHAD and Ab Initio Approaches
- 3.6 Pettifor Map Approach to Predict the Formation of Intermetallic Compound, Quasicrystal, and Glass
- 3.7 Phase Selection Approach to Find Single-Phase vs. Multiphase HEMs
- 3.7 Design Strategies for High Entropy Oxides and Borides
- 3.8 Microstructure of HEMs
· Chapter 4 : Diffusion in HEMs
- 4.1. Diffusion in Multicomponent Systems: Theory and Experiment
- 4.2 Diffusivities of HEAs: Measured vs. Postulated
- 4.3 Diffusional Solid State Phase Transformation in HEAs
Eutectoid, Phase Separation and Precipitation
- 4.4. Integration of diffusional transformation with models of phase transformation
- Chapter 5. High Entropy Material Design using ICME and Materials Genome
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- 5.1 Introduction to ICME
- 5.2 Integrated Computational Materials Engineering Approach to Design and Develop New Materials
- 5.3 HEMs and their link to ICME
- 5.4 Development of Materials Database for HEMs
Chapter 6. Synthesis and Processing of Bulk HEMs
- 6.1 Introduction
- 6.2 Processing of HEAs
- 6.2.1 Melting and Casting Route
- 6.2.2 Powder Metallurgical Processing Route
- 6.3 HEA-Based Composites
- 6.4 High Entropy Ceramics: Oxide and Borides
- 6.5 Combinatorial Materials Synthesis
- 6.6 Additive manufacturing
Chapter 7. Synthesis and Processing of HEA Coating and Thin Films
- 7.1 Introduction
- 7.2. HEA Coatings : Challenges
- 7.3 HEA Thin Films: Preparation and Challenges
- 7.4 Combinatorial Synthesis Approach for Coating and Thin Films
- Chapter 8. Structural Properties
-
- 8.1 Introduction
- 8.2 Hot and cold working of HEA
- 8.3 Mechanical Properties
- 8.4 Corrosion Behavior
- 8.5 Oxidation Behavior
Chapter 9. Functional Applications
- 9.1 Introduction
- 9.2 Electronics
- 9.3 Thermoelectrics
- 9.4 Magnetism
- 9.5 Hydrogen Storage
- 9.6 Waste Management
Chapter 10. Applications
- 10.1 Introduction
- 10.2 Goals of Property Improvement
- 10.3 Advanced Applications Demanding New Materials
- 10.4 Examples of Applications
- 10.5 Patents on HEAs and Related Materials
- 10.6 Future Directions
References
- Appendix
