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Shear deformation with imposed hydrostatic pressure for enhanced compaction of powder

Lapovok, R., Tomus, D. and Bettles, C. 2008, Shear deformation with imposed hydrostatic pressure for enhanced compaction of powder, Scripta materialia, vol. 58, no. 10, pp. 898-901, doi: 10.1016/j.scriptamat.2008.01.010.

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Title Shear deformation with imposed hydrostatic pressure for enhanced compaction of powder
Author(s) Lapovok, R.
Tomus, D.
Bettles, C.
Journal name Scripta materialia
Volume number 58
Issue number 10
Start page 898
End page 901
Total pages 4
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2008-05
ISSN 1359-6462
Summary 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. © 2008 Acta Materialia Inc.
Language eng
DOI 10.1016/j.scriptamat.2008.01.010
Field of Research 091207 Metals and Alloy Materials
0912 Materials Engineering
0913 Mechanical Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2008, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075975

Document type: Journal Article
Collection: Institute for Frontier Materials
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