This book is a detailed introduction to mechanical alloying, offering guidelines on the necessary equipment and facilities needed to carry out the process and giving a fundamental background to the reactions taking place. El-Eskandarany, a leading authority on mechanical alloying, discusses the mechanism of powder consolidations using different powder compaction processes. A new chapter will also be included on thermal, mechanically-induced and electrical discharge-assisted mechanical milling. Fully updated to cover recent developments in the field, this second edition also introduces new and emerging applications for mechanical alloying, including the fabrication of carbon nanotubes, surface protective coating and hydrogen storage technology. El-Eskandarany discusses the latest research into these applications, and provides engineers and scientists with the information they need to implement these developments. The industrial applications of nanocrystalline and metallic glassy powders are presented. The book also contains over 200 tables and graphs to illustrate the milling processes and present the properties and characteristics of the resulting materials. - Guides readers through each step of the mechanical alloying process, covering best practice techniques and offering guidelines on the required equipment - Tables and graphs are used to explain the stages of the milling processes and provide an understanding of the properties and characteristics of the resulting materials - A comprehensive update on the previous edition, including new chapters to cover new applications

This book concentrates on both understanding and development of nanocrystalline materials. The original relation that connects grain size and strength, known as the Hall-Petch relation, is studied in the nanometer grain size region. The breakdown of such a relation is a challenge. Why and how to overcome it? Is the dislocation mechanism still operating when the grain size is very small, approaching the amorphous limit? How do we go from the microstructure information to the continuum description of the mechanical properties?

This book surveys the broad field of mechanical alloying from a scientific and technological perspective to form a timely and comprehensive resource valuable to both students and researchers. The treatment progresses from the historical background through a description of the process, the different metastable effects produced, and the mechanisms of

ISMANAM-2000 Proceedings of the International Symposium on Metastable, Mechanical Alloyed and Nanocrystalline Materials (ISMANAM-2000). Oxford, UK, July 9-14, 2000

Metastable and Nanocrystalline Materials offer enormous technological potential and, for this reason, they are the subject of intense world-wide research.

There is a growing interest in the field of Mechanically Alloyed, Metastable and Nanocrystalline Materials, especially with regard to linking basic research efforts to technological requirements of industrial applications.

Mechanical alloying is a technique of producing alloys and compounds that permits the development of metastable materials (with amorphous or nanocrystalline microstructure) or the fabrication of solid solutions with extended solubility. The elements or compounds to be mixed (usually as powders) are introduced in jars usually under a controlled atmosphere. Regarding the scope of this book, advanced materials have been developed by mechanical alloying: Fe-X-B-Cu (X = Nb, NiZr) nanocrystalline alloys, mixtures of the binary Fe-Mn and Fe-Cr alloys with chromium and manganese nitrides, Mn-Al-Co and Mn-Fe alloys, non-equiatomic refractory high-entropy alloys, nanocrystalline Fe-Cr steels, nanaocrystalline Mn-Co-Fe-Ge-Si alloys, Al-Y2O3 nanocomposite, and hydride-forming alloys. Likewise, production conditions and ulterior treatments can provide readers interesting ideas about the procedure to produce alloys with specific microstructure and functional behavior (mechanical, magnetic, corrosion resistance, hydrogen storage, magnetocaloric effect, wastewater treatment, and so on). As an example, to obtain the improvement in the functional properties of the alloys and compounds, sometimes controlled annealing is needed (annealing provokes the relaxation of the mechanical-induced strain). Furthermore, the powders can be consolidated (press, spark plasma sintering, and microwave sintering) to obtain bulk materials.

This books reports exciting new research results in the area of bulk metallic glasses and bulk nanocrystalline materials prepared by severe plastic deformation. Other major topics include synthesis and processing of metals, intermetallics and oxides, polymers, nanocomposites and others by different techniques, including mechanosynthesis and mechanochemistry. Also covered are the structural characterization of nanophase materials and the structural evolution caused by mechanical treatment.

Proceedings of a fall 1997 symposium, representing recent work in the study, development, and commercialization of mechanically alloyed, metastable, and nanocrystalline materials. Contains sections on synthesis and processing, characterization, thermodynamics and kinetics, properties, and near and long term applications. Specific subjects include mechanical alloying and milling, consolidation and sintering, metastable phases, crystallization, and magnetic properties. This two-volume set contains a total of 165 papers. Annotation copyrighted by Book News, Inc., Portland, OR.