G. A. Pribytkov*, V. V. Korzhova**, and E. N. Korosteleva***
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences,
Akademicheskii pr. 2/4, Tomsk, 634021 Russia
*e-mail: gapribyt@mail.ru
**e-mail: vicvic5@mail.ru
***e-mail: elenak@ispms.tsc.ru
Abstract—Volume changes during solid-phase sintering and the structure and phase composition of materials
sintered of the binary and ternary powder foundry alloys of the Al–Cr(Si,Ti) system are investigated. The pow-
ders for sintering were obtained by self-propagating high-temperature synthesis (SHS) in the mixtures of ele-
mentary powders of four target compositions with the subsequent crashing of the cakes and sieving of fine frac-
tions. When sintering all the pressings under study, volume shrinkage, which monotonically increased with an
temperature rise and the duration of the isothermal holding, take place. The results of structural investigations
of the sintered materials, which were performed applying the methods of X-ray structural analysis, electron
probe microanalysis, optical and scanning microscopy, are discussed jointly with the results of investigations
of the volume variations during sintering.
Keywords: aluminum, chromium, powder foundry alloys, solid-phase sintering, volume changes, phase com-
position, microstructure
DOI: 10.3103/S1067821213030140
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