Akademik Veri Yönetim Sistemi
3. INTERNATIONAL MEDITERRANEAN CONGRESS, Mersin, Türkiye, 17 - 18 Nisan 2023, ss.262-263
Deformation processing techniques (cold rolling, extrusion, and drawing
etc.) are used as main manufacturing methods at both industrial and laboratory
level-especially for metallic components. Cold working triggers several
microstructure related phenomena which eventually assist in the strain induced strengthening
of the metallic alloys. Recently, deformation processing has extended from
conventional strengthening method to a strategic step in fabrication of
state-of-art modern composites. For example, the in situ synthesis of new
phases using powder metallurgy requires the powder particles to be arranged in
a favorable position, so that the phase synthesis could initiate. Therefore,
current study investigates the co-deformation aspects of ceramic (B4C, 1-7 μm) and metallic (Fe, 45 μm)
microparticle mixtures, when they are subjected to cold rolling. Powder
mixtures are prepared at increasing reinforcement ratios (Fe-5, 10, and 15 vol.
%B4C) and deformation levels (ղ= 0.82, 1.24, 1.79, 2.10, and 3.10). Results showed
that while intermediate deformation levels assisted in compaction/compression
of the powder mixtures, the fiberization of metallic particles required severe
plastic deformation. As for the ceramic particles, the co-deformation behavior
was not significantly affected by the reinforcement ratios which is attributed
to large size ratios of the constituent particles.