Cermet Formation during Mechanical Activation of TiB2 - Fe SHS Powder in Benzine
O. K. LEPAKOVA, O. G. TEREKHOVA, V. A. KOSTIKOVA and V. D. KITLER
Structural Macrokinetics Department, Tomsk Scientific Center,
Siberian Branch of the Russian Academy of Sciences, Pr. Akademicheskiy 10/3, Tomsk 634021 (Russia) E-mail: maks@fishman.tomsk.ru
Pages: 443-446
Abstract
Phase composition and structure studies have been performed using metallography, X-ray diffraction, and X-ray microstructural analysis for TiB2 - Fe SHS powders mechanically activated in benzine and for sintered alloys of mechanically activated powders. Mechanical activation (MA) in benzine changes the phase composition of titanium diboride in an iron matrix, forming Ti1.87B50, TiB, Fe2B, and Fe3B. After the sintering, the alloy has the following phases: TiB2, a-Fe, Fe2B, and TiC. Formation of titanium carbide is due to the interaction of benzine with TiB2 - Fe SHS powder in the course of MA.
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