Grain Size Reduction in a TiC–Co Material during SHS Extrusion

The variation in the grain size of a titanium carbide-based material with a cobalt binder is studied theoretically and experimentally in relation to its location in the chamber of a die, matrix, and along the length of the sample after SHS extrusion. Our experimental results show that the average gr...

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Bibliographic Details
Published in:Inorganic materials 2020-07, Vol.56 (7), p.695-699
Main Authors: Stel’makh, L. S., Stolin, A. M., Bazhin, P. M.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Densification
Extrusion dies
Grain size
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Size reduction
Titanium carbide
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Summary:The variation in the grain size of a titanium carbide-based material with a cobalt binder is studied theoretically and experimentally in relation to its location in the chamber of a die, matrix, and along the length of the sample after SHS extrusion. Our experimental results show that the average grain size in a material synthesized without any external load is 4.9 μm. Densification in a die reduces it to 3.8 μm, and extrusion of the material considerably reduces the average grain size, down to 2 μm, which is consistent with theoretical predictions. In most of the extruded rod, the grain size distributions along and across the rod are uniform.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168520070158