High-Entropy Alloys

A complete picture of a unique new approach to alloy design

B.S. Murty (Author), Jien-Wei Yeh (Author), S. Ranganathan (Author)

9780128002513, Elsevier Science

Paperback, published 24 June 2014

218 pages
22.9 x 15.1 x 1.5 cm, 0.32 kg

This book provides a complete review of the current state of the art in 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. In 2004, Professor J.W. Yeh and his group first reported a new approach to alloy design, which involved mixing elements in equiatomic or near-equiatomic proportions, to form multi-component alloys with no single principal element. These alloys are expected to have high configurational entropy and hence were termed as "high entropy alloys."HEAs have a broad range of structures and properties, and may find applications in structural, electrical, magnetic, high-temperature, wear-resistant, corrosion-resistant, and oxidation-resistant components. 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.

Chapter 1. A Brief History of Alloys and the Birth of High-Entropy AlloysChapter 2. High-Entropy Alloys: Basic ConceptsChapter 3. Phase Selection in High-Entropy AlloysChapter 4. Alloy Design in the Twenty-First Century: ICME and Materials Genome StrategiesChapter 5. Synthesis and ProcessingChapter 6. High-Entropy Alloy Solid SolutionsChapter 7. Intermetallics, Interstitial Compounds and Metallic Glasses in High-Entropy AlloysChapter 8. Structural PropertiesChapter 9. Functional PropertiesChapter 10. Applications and Future Directions

Subject Areas: Materials science [TGM], Metals technology / metallurgy [TDM]