Effect of low frequency vibration on porosity of LM25 and LM6 alloys


Kocatepe K.

MATERIALS & DESIGN, cilt.28, sa.6, ss.1767-1775, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Konu: 6
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.matdes.2006.05.004
  • Dergi Adı: MATERIALS & DESIGN
  • Sayfa Sayıları: ss.1767-1775

Özet

This study summarises research into the effect of low frequency mechanical vibration on the porosity of unmodified and metallic sodium modified LM25 [Al-Si 7.15%] and LM6 [Al-Si 12.30%] alloys. Vibration at varying frequencies between 15 and 41.7 Hz and amplitudes between 0. 125 and 0. 5 mm has been applied to both unmodified and metallic sodium modified LM6 and LM25 alloys during solidification. The effect of low frequency vibration on the porosity was analysed using optic and quantitative metallographic techniques. The results indicated that: