Production of functionally graded SiC/Al-Cu-Mg composite by centrifugal casting

Savaş Ö., Kayikci R., Ficici F., Colak M., Deniz G., Varol F.

Science and Engineering of Composite Materials, cilt.23, sa.2, ss.155-159, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1515/secm-2014-0141
  • Dergi Adı: Science and Engineering of Composite Materials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.155-159
  • Anahtar Kelimeler: aluminum matrix composites, centrifugal casting, functionally graded composites, SiC, METAL-MATRIX COMPOSITES, SLIDING WEAR, MICROSTRUCTURE
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

© 2016 by De Gruyter.This study is aimed at investigating the production and wear properties of a functionally graded (FG) silicon carbide (SiC)-reinforced composite material, which was produced by stir casting followed by centrifugal casting. SiC powder (5 wt.%) was added into liquid aluminum at 750°C via stir casting, at which temperature a centrifugal force was applied to the mixture to drive the SiC particles toward the outer region of the mold. The results showed that two distinct regions formed in the cast samples after the centrifugation process. The outer region showed approximately 25% SiC particles resulting in almost SiC particle-free area in the internal region of the FG SiC-reinforced composite material. The test results showed that higher hardness and higher wear resistance could be obtained at the SiC-rich periphery of the cast FG composite material.