Article ID Journal Published Year Pages File Type
1501938 Scripta Materialia 2008 4 Pages PDF
Abstract

In this paper equal channel angular extrusion with back pressure was used to compact Ti–6Al–4V powder at 400 °C, achieving relative densities of 98.3–98.6% and green strengths up to 750 MPa. The novelty of the approach arises from the notion that severe shear deformation is an important factor for consolidation. Improved compaction is related to enhanced self-diffusion through the creation of additional diffusion paths (defects) and the imposed hydrostatic pressure. The role of deformation mechanisms in improving compaction is discussed.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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