ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Titanium-Aluminides by Hot Isostatic Pressing of Cold Extruded Titanium-Aluminium Powder Mixtures
M. Dahms, J. Seeger, W. Smarsly, B. Wildhagen
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Keywords: TiAl, powder metallurgy, extrusion, reactive HIP, microcracking, dynamic recrystallization
JOURNAL OPEN ACCESS

1991 Volume 31 Issue 10 Pages 1093-1099

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Abstract
Gamma-base titanium-aluminides were produced by reactive hot isostatic pressing (RHIP) of cold extruded titanium-aluminium elemental powder mixtures. Various RHIP temperatures as well as additional heat treatments were applied in order to obtain different microstructures. Compression samples were tested between room temperature and 900°C. Changes in microstructure during compression such as microcracking, inhomogeneous deformation and dynamic recrystallization were investigated. The measured properties are discussed with respect to microstructure.
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© The Iron and Steel Institute of Japan

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license.
https://creativecommons.org/licenses/by-nc-nd/4.0/
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