High-Entropy Alloys - 2nd Edition - ISBN: 9780128160671, 9780128160688

High-Entropy Alloys

2nd Edition

Authors: B.S. Murty Jien-Wei Yeh S. Ranganathan P. P. Bhattacharjee
eBook ISBN: 9780128160688
Paperback ISBN: 9780128160671
Imprint: Elsevier
Published Date: 1st March 2019
Page Count: 316
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Description

High-Entropy Alloys, Second Edition, provides a complete review of the current state of the field of high entropy alloys (HEA). The conventional approach to alloy design is to select one principal element and add elements to it in minor quantities in order to improve the properties. Building upon the first reported new approach to alloy design reported in 2004 by Professor J.W. Yeh and his group, this expanded and fully updated edition includes the new theoretical understanding of these materials, highlighting recent developments on the modelling front; new classes of HEAs such as Eutectic HEAs, Dual phase HEAs and updates on various classes of HEAs. It also discusses the current applications for HEAs, as well as the challenges faced by the field.

Due to their unique properties, high entropy alloys have attracted considerable attention from both academics and technologists. This book presents the fundamental knowledge present in the field, the spectrum of various alloy systems and their characteristics studied to date, current key focus areas, and the future scope of the field in terms of research and technological applications

Key Features

  • Provides an up to date comprehensive understanding on the current status of the HEAs in terms of theoretical understanding and modelling efforts
  • Gives a complete idea on alloy design criteria of various classes of HEAs that have been developed so far
  • Discusses the microstructure property correlations in HEAs in terms of structural and functional properties
  • Provides a comparison of HEAs with other multicomponent systems like intermetallics and bulk metallic glasses
  • Identifies the challenges being faced in the field

Readership

Current and future researchers in the field of High Entropy Alloys (HEA)

Table of Contents

  1. A Brief History of Alloys and the Birth of High-Entropy Alloys:
    1.1 Introduction
    1.2 The coming of alloys
    1.3 Special alloys
    1.4 The coming of multicomponent HEAs
    1.5 The scope of this book
    2. Basic Concepts:
    2.1 Introduction
    2.2 Classification of phase diagrams and alloy systems
    2.3 Concept of Entropy (new section)
    2.4 Definition of HEAs
    2.5 Composition notation
    2.6 Four core effects
    3. Physical Metallurgy: (New Chapter)
    3.1 Defects
    3.2 Diffusion behaviour
    3.3 Deformation behaviour
    3.4 Phase transformation
    4. Alloy Design and Phase Selection Rules:
    4.1 Predicting solid solubility from Hume-Rothery rules
    4.2 Mutual solid solubility and phase formation tendency in HEAs
    4.3 Parametric approaches to predict crystalline solid solution and metallic glass
    4.4 Pettifor map approach to predict the formation of intermetallic compound, quasicrystal and glass
    4.5 Phase separation approach to find single phase HEAs
    4.6 Integrated Computational Materials engineering (Calphad, Ab initio, MD simulations, Monte Carlo simulations, Phase field modelling
    5. Synthesis and Processing:
    5.1 Introduction
    5.2 Melting and casting route
    5.3 Casting and wrought route
    5.4 Solid state processing route
    5.5 Coating technology
    5.6 3D printing
    5.7 Combinatorial materials synthesis
    6. Solid Solution High-Entropy Alloys:
    6.1 Introduction
    6.2 Solid solution formation in equiatomic HEAs
    6.3 Solid solution formation in nonequiatomic HEAs
    6.4 Multiphase HEAs
    7. Special Subgroups of High-Entropy Alloys:
    7.1 Introduction
    7.2 Intermetallic compounds (B2, L12, Sigma, Laves)
    7.3 Interstitial compounds
    7.4 Metallic glasses
    7.5 Refractory HEAs (new section)
    7.6 Eutectic HEAs (new section)
    7.7 HE superalloys (new section)
    7.8 Light HEAs (new section)
    7.9 Dual Phase HEAs (new section)
    7.10 Inspired Medium-Entropy alloys – HE steels, Ni alloy, Cu alloys, Al alloys (new section)
    8. High-Entropy-Alloy Related Materials: (New Chapter)
    8.1 HE oxides
    8.2 HE carbides
    8.3 HE nitrides
    8.4 HE cemented carbides
    8.5 HE cermets
    8.6 HE composites
    9. High-Entropy Alloy Coatings: (New Chapter)
    9.1 Thin film coatings
    9.2 Thick film coatings
    10. Structural Properties:
    10.1 Introduction
    10.2 Mechanical properties
    10.3 Wear properties
    10.4 Electrochemical properties
    10.5 Oxidation behaviour
    11. Functional Properties
    11.1 Introduction
    11.2 Diffusion barrier properties
    11.3 Electrical properties
    11.4 Thermal properties
    11.5 Magnetic properties
    11.6 Hydrogen storage properties
    11.7 Irradiation resistance
    11.8 Catalytic properties
    11.9 Biomedical properties (new section)
    12. Applications, Challenges and Future Directions:
    12.1 Introduction
    12.2 Goals of property improvement
    12.3 Advanced applications demanding new materials
    12.4 Examples of applications
    12.5 Patents of HEAs and related materials
    12.6 Challenges and Future directions

Details

No. of pages:
316
Language:
English
Copyright:
© Elsevier 2019
Published:
Imprint:
Elsevier
eBook ISBN:
9780128160688
Paperback ISBN:
9780128160671

About the Author

B.S. Murty

B.S. Murty

Dr. B.S. Murty is a Professor, Department of Metallurgical and Materials Engineering, IIT Madras, Chennai, India. He has pioneered the synthesis of nanocrystalline materials by mechanical alloying route. His other important contributions are in the field of bulk metallic glasses and in-situ composites. He has co-authrored a Text Book on Nanoscience and Nanotechnology. He has also made significant contributions to the field of high-entropy alloys.

Affiliations and Expertise

Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, India

Jien-Wei Yeh

Jien-Wei Yeh

Dr. J.W. Yeh is a Professor, Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, R.O.C. He is the first to propose the concept of HEAs and HE-related materials. He has dug into this field for more than 18 years. His other important contributions are in the field of high-strength Al and Mg alloys, metal-matrix composites, rapid solidification, and reciprocating extrusion.

Affiliations and Expertise

Department of Materials Science and Engineering, National TsingHua University, Hsinchu, Taiwan

S. Ranganathan

Dr. Srinivasa Ranganathan is NASI Platinum Jubilee Fellow at the Indian Institute of Science, Bangalore. His academic career as an educator and researcher in metallurgy for the past four decades at the Banaras Hindu University and the Indian Institute of Science has been stellar. He has made significant contributions to our understanding of the structure of interfaces, quasicrystals, bulk metallic glasses and nanostructured materials. He has co-authored a book on New Geometries for New Materials.

Affiliations and Expertise

Department of Materials Engineering, Indian Institute of Science, Bangalore, India

P. P. Bhattacharjee

Dr. Pinaki Bhattacharjee is an Associate Professor in the Department of Materials Science and Engineerinng at the Indian Institute of Technology Hyderabad. His research interests include deformation and restoration behaviour of metallic materials, as well as crystallographic texture, and the application of high resolution Electron Back Scatter Diffraction (EBSD) and Transmission Electron Microscopy (TEM) techniques in materials characterization.

Affiliations and Expertise

Department of Materials Science and Engineering, Indian Institute of Technology Hyderabad, Andhra Pradesh, India

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