The papers of this second conference summarize the progress made in three major target areas; (1) to identify new phenomena in superplasticity, (2) to extend superplasticity research into the atomistic level of grain boundary analysis and (3) to find ways of enhancing collaboration between scientists and industrial engineers.

Proceedings of the 2nd International Conference 'Towards Innovation in Superplasticity', held in Kobe City, Japan, September 1998

This publication presents the proceedings of the International Symposium towards Innovation in Superplasticity. The research project, Innovation in Superplasticity, was chosen to be one of the priority scientific research efforts in 1996, of the Ministry of Education, Science and Culture, Japan.

Superplasticity is the ability of polycrystalline materials under certain conditions to exhibit extreme tensile elongation in a nearly homogeneous/isotropic manner. Historically, this phenomenon was discovered and systematically studied by metallurgists and physicists. They, along with practising engineers, used materials in the superplastic state for materials forming applications. Metallurgists concluded that they had the necessary information on superplasticity and so theoretical studies focussed mostly on understanding the physical and metallurgi cal properties of superplastic materials. Practical applications, in contrast, were led by empirical approaches, rules of thumb and creative design. It has become clear that mathematical models of superplastic deformation as well as analyses for metal working processes that exploit the superplastic state are not adequate. A systematic approach based on the methods of mechanics of solids is likely to prove useful in improving the situation. The present book aims at the following. 1. Outline briefly the techniques of mechanics of solids, particularly as it applies to strain rate sensitive materials. 2. Assess the present level of investigations on the mechanical behaviour of superplastics. 3. Formulate the main issues and challenges in mechanics ofsuperplasticity. 4. Analyse the mathematical models/constitutive equations for superplastic flow from the viewpoint of mechanics. 5. Review the models of superplastic metal working processes. 6. Indicate with examples new results that may be obtained using the methods of mechanics of solids.

This book combines the perspectives of materials science of Superplasticity, on the one hand, and those of design and mechanics, on the other, in order to provide a holistic view of materials, design, mechanics and performance which will lead to useful solutions of societal benefits, in addition to providing great intellectual challenges. After considering the experimental evidence for superplasticity in different classes of materials, the book discusses the physics-based models, along with their advantages and limitations. Then, the analyses for superplastic forming available in the framework of continuum mechanics, finite element analysis and numerical simulations are presented. Finally, the authors highlight some successful industrial applications. This book is recommended as a text book for courses on Superplasticity and as supplementary use for courses on Materials Processing, Manufacturing, High Temperature Deformation, Nanotechnology and Mechanical Behavior of Materials. Persons working in Department of Materials Science and Engineering, Physics, Mechanics, Mechanical Engineering, Aerospace Engineering, Metallurgy, Ceramics and Geo-sciences are likely to find the book to be useful. It is also recommended as a reference source for practicing engineers involved in the design, processing and manufacture of industrial components, which exploit the unique properties associated with superplastic materials.

This book describes the fundamentals and potential applications of 'friction stir superplasticity for unitized structures'. Conventional superplastic forming of sheets is limited to the thickness of 3 mm because the fine grained starting material is produced by rolling. Friction stir superplasticity has grown rapidly in the last decade because of the effectiveness of microstructural refinement. The thickness of the material remains almost constant, and that allows for forming of thick sheets/plates, which was not possible before. The field has reached a point where designers have opportunities to expand the extent of unitized structures, which are structures in which the traditional primary part and any supporting structures are fabricated as a single unit. With advanced optimization and material considerations, this class of structures can be lighter weight and more efficient, making them less costly, as well as mechanically less complex, reducing areas of possible failure. - Discusses how friction stir processing allows selective microstructural refinement without thickness change - Demonstrates how higher thickness sheets and plates can be superplastically formed - Examples are presented for aluminum, magnesium and titanium alloys - Covers the production of low-cost unitized structures by selectively processing cast sheets/plates

These proceedings are designed to provide a forum that integrates research in characterization and modeling to advance the science of ceramic/composite sintering. Densification, shape deformation, and microstructure evolution during sintering is addressed.

Proceedings of the 7th International Conference ICAA7, held in Charlottesville, Virginia, April 9-14, 2000

This new book provides and introductory text on the science and technology of materials in automotive engines. It focuses on reciprocating engines, both four and two-stroke, with particular emphasis on their characteristics and the materials used in their construction. The books considers the engine in terms of each specific part : the piston, cylinder, camshaft valves, crankshaft, connecting rod and catalytic converter. It also covers the metallurgy, surface modification, wear resistance, and chemical composition of the materials considered and it will include supplementary notes that support the core text. The book will be essential reading for engineers and designers of engines, as well as lecturers and graduate students in the fields of combustion engineering, machine design, and materials science looking for a concise, expert analysis of automotive materials. This new book provides and introductory text on the science and technology of materials in automotive engines. It focuses on reciprocating engines, both four and two-stroke, with particular emphasis on their characteristics and the materials used in their construction. The books considers the engine in terms of each specific part : the piston, cylinder, camshaft valves, crankshaft, connecting rod and catalytic converter. It also covers the metallurgy, surface modification, wear resistance, and chemical composition of the materials considered and it will include supplementary notes that support the core text. The book will be essential reading for engineers and designers of engines, as well as lecturers and graduate students in the fields of combustion engineering, machine design, and materials science looking for a concise, expert analysis of automotive materials. (Midwest).