Bulk nanostructured materials from severe plastic deformation

Mechanical properties of nanocrystalline materials

Principles of equal-channel angular pressing as a processing tool for grain refinement

http://www.uniroma2.it/didattica/tbs2/deposito/Manufacture,_characterisation_and_application_of_cellular_metals_and_metal_foams.pdf

Manufacture, characterisation and application of cellular metals and metal foams

The MN+1AXN phases: A new class of solids

Superplasticity—Recent advances and future directions

Hall-petch relation in nanocrystalline solids

Preface 1. Introduction 2. Key historical contributions 3. Types of superplasticity 4. Mechanisms of high-temperature deformation and phenomenological relations for fine-structure superplasticity 5. Fine-structure superplastic metals 6. Fine-structure superplastic ceramics 7. Fine-structure superplastic intermetallics 8. Fine-structure superplastic composites and laminates 9. High-strain-rate superplasticity 10. Ductility and fracture in superplastic materials 11. Internal-stress superplasticity (ISS) 12. Other possible superplasticity mechanisms 13. Enhanced powder consolidation through superplastic flow 14. Superplastic forming and diffusion bonding 15. Commercial examples of superplastic products Index.

/pdf/superplasticity-in-metals-and-ceramics-3jgtfj3ydg.pdf

Superplasticity in metals and ceramics

Laminated metal composites (LMCs) are a unique form of composite material in which alternating metal or metal containing layers are bonded together with discrete interfaces. The mechanical properties of these materials are reviewed. The tensile properties at low and high temperatures are described. At low temperature, very high tensile strengths can be achieved in deposition processed laminates and very high tensile ductilities can be achieved in roll bonded laminates by layer thickness refinement. At high temperature, superplasticity has been observed and agrees with predictions from constitutive creep relations. Damage critical properties (such as fracture toughness, fatigue, and impact behaviour) and damping can be superior to those exhibited by the component materials. The damage critical properties are strongly influenced by local delaminations at layer interfaces. Mechanisms responsible for many of the unique properties of LMCs have been proposed. The influence of processing, laminate archit...

Mechanical behaviour of laminated metal composites

The mechanical properties of open-cell 6101 aluminum foams with different densities (∼5–10%) and morphologies (4–16 cells cm−1) were characterized in compression. It was found that density is the primary variable controlling the modulus and yield strength of foams. The effects of other variables such as cell size and shape were also studied. Whereas the cell size appears to have a negligible effect on the strength of foams, at a fixed density, the cell shape was shown to effect the strength of foams. In the present paper, theoretical models are offered to explain the differences in modulus and strength caused by the differences in cell shape and size.

Jeffrey Wadsworth

Papers

Superplasticity—Recent advances and future directions

Hall-petch relation in nanocrystalline solids

Superplasticity in metals and ceramics

Mechanical behaviour of laminated metal composites

Effect of cell morphology on the compressive properties of open-cell aluminum foams