Nanomaterials by Severe Plastic Deformation
Nanotechnology has spawned the creation of many novel fabrication processes enroute to a nanomaterial, nanophase, or nanomachine. Severe plastic deformation (Equal Channel Angular Pressing – ECAP, High Pressure Torsion – HPT, Accumulated Roll Bonding – ARB, etc.), a highly refined derivative of deformation processing, is beginning to see wide use for obtaining a nanophase microstructure in crystalline solids. It has led to the improved strength of metals and alloys without loss in workability, and to markedly enhanced superplasticity and fatigue properties. Advantages of severe plastic dformation include the production of large specimens and the achievement of nanophase materials without porosity.
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