Chapter 10 Emerging processing routes
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Om Prakash
Abstract
High-entropy alloys (HEAs) are produced using a number of processing techniques. HEAs have been produced in a variety of materials, including films, dense solid castings, and powder metallurgy components. The three types of processing routes - melting and casting, powder metallurgy, and deposition techniques - can be broadly divided into three classes. In order to create HEAs in the form of rods, bars, and ribbons, melting and casting procedures have been used, along with equilibrium and nonequilibrium cooling rates. The vacuum arc melting, vacuum induction melting, and melt spinning processes are the most widely used melt processing methods. The primary solid-state processing method to create sintered goods has been mechanical alloying (MA), followed by sintering. The surface modification methods utilized to create both thin films and thick layers of HEAs on various substrates include plasma nitriding, cladding, and sputtering. This chapter provides a brief overview of the various synthesis and processing methods used to create HEAs. The processing pathways for equiatomic and nonequiatomic HEAs are comparable.
Abstract
High-entropy alloys (HEAs) are produced using a number of processing techniques. HEAs have been produced in a variety of materials, including films, dense solid castings, and powder metallurgy components. The three types of processing routes - melting and casting, powder metallurgy, and deposition techniques - can be broadly divided into three classes. In order to create HEAs in the form of rods, bars, and ribbons, melting and casting procedures have been used, along with equilibrium and nonequilibrium cooling rates. The vacuum arc melting, vacuum induction melting, and melt spinning processes are the most widely used melt processing methods. The primary solid-state processing method to create sintered goods has been mechanical alloying (MA), followed by sintering. The surface modification methods utilized to create both thin films and thick layers of HEAs on various substrates include plasma nitriding, cladding, and sputtering. This chapter provides a brief overview of the various synthesis and processing methods used to create HEAs. The processing pathways for equiatomic and nonequiatomic HEAs are comparable.
Chapters in this book
- Frontmatter I
- Contents V
- About the editors VII
- List of contributing authors IX
- Chapter 1 Overview of high-entropy alloys 1
- Chapter 2 Classification of processing routes 31
- Chapter 3 Powder metallurgy route 41
- Chapter 4 Melting and casting route 57
- Chapter 5 Effect of processing routes on the microstructure/phases of high-entropy alloys 67
- Chapter 6 Correlation of the sintering parameters with the mechanical properties of HEAs processed through the powder metallurgy route 75
- Chapter 7 Basic alloying elements used in high-entropy alloys 83
- Chapter 8 Effect of alloying elements on the phases of high-entropy alloys 89
- Chapter 9 Effect of alloying elements on the properties of high-entropy alloys 99
- Chapter 10 Emerging processing routes 109
- Index 119
Chapters in this book
- Frontmatter I
- Contents V
- About the editors VII
- List of contributing authors IX
- Chapter 1 Overview of high-entropy alloys 1
- Chapter 2 Classification of processing routes 31
- Chapter 3 Powder metallurgy route 41
- Chapter 4 Melting and casting route 57
- Chapter 5 Effect of processing routes on the microstructure/phases of high-entropy alloys 67
- Chapter 6 Correlation of the sintering parameters with the mechanical properties of HEAs processed through the powder metallurgy route 75
- Chapter 7 Basic alloying elements used in high-entropy alloys 83
- Chapter 8 Effect of alloying elements on the phases of high-entropy alloys 89
- Chapter 9 Effect of alloying elements on the properties of high-entropy alloys 99
- Chapter 10 Emerging processing routes 109
- Index 119
