Microstructure and phase composition of mechanically alloyed and hot pressed Ti-Al alloys

Elemental mixtures of Ti xAl 100−x (x=75, 50, 35 at.%) were mechanically alloyed in a vibratory ball mill and then hot pressed. This permitted us to obtain fully dense bulk samples of Ti-Al intermetallics with a grain size of the order of 10 2 nm. The microhardness of the samples was about 500–900 H...

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Bibliographic Details
Published in:Nanostructured materials 1999, Vol.12 (1), p.167-170
Main Authors: Szewczak, E., Presz, A., Witek, A., Wyrzykowski, J.W., Matyja, H.
Format: Article
Language:English
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Summary:Elemental mixtures of Ti xAl 100−x (x=75, 50, 35 at.%) were mechanically alloyed in a vibratory ball mill and then hot pressed. This permitted us to obtain fully dense bulk samples of Ti-Al intermetallics with a grain size of the order of 10 2 nm. The microhardness of the samples was about 500–900 HV 0,2 according to the composition and no brittle cracking was observed during the microhardness measurements. Scanning electron microscopy linked with energy dispersive spectroscopy was used for the structural and compositional analysis.
ISSN:0965-9773
1872-9150
DOI:10.1016/S0965-9773(99)00090-2