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Blended elemental powder densification of Ti-6Al-4V by hot pressing

Published online by Cambridge University Press:  21 March 2011

Bing Ye ,
Marc R. Matsen  and
David C. Dunand
Bing Ye
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
Marc R. Matsen
Affiliation:
Boeing Research and Technology, The Boeing Company, Seattle, Washington 98124
David C. Dunand*
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
*
a)Address all correspondence to this author. e-mail: dunand@northwestern.edu
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Abstract

The densification kinetics of a blend of unalloyed Ti and Al-40V master alloy powders are measured during uniaxial hot pressing under 3–10 MPa pressure for thermal cycling (860–1020 °C) or isothermal (1020 °C) conditions. Subsequent heat treatment for 4–16 h at 1020 °C results in a homogeneous Ti-6Al-4V microstructure. This process provides a low-cost alternative to hot isostatic pressing of prealloyed Ti-6Al-4V powders.

Keywords

TiPowder MetallurgySuperplasticity
Type
Materials Communications
Information
Journal of Materials Research , Volume 26 , Issue 8 , 28 April 2011 , pp. 965 - 969
Copyright
Copyright © Materials Research Society 2011

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