QUANTITATIVE ANALYSIS OF CODEFORMATION BEHAVIOR OF CERAMIC AND METALLIC PARTICLES


Zafar H. M. N., Nair F.

3. INTERNATIONAL MEDITERRANEAN CONGRESS, Mersin, Turkey, 17 - 18 April 2023, pp.262-263

  • Publication Type: Conference Paper / Summary Text
  • City: Mersin
  • Country: Turkey
  • Page Numbers: pp.262-263
  • Erciyes University Affiliated: Yes

Abstract

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.