Microstructural chracterisation of Al-Si-xTi cast alloys

ZEREN M., Karakulak E.

MATERIALS SCIENCE AND TECHNOLOGY, cilt.25, sa.10, ss.1211-1214, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 10
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1179/174328408x382190
  • Dergi Adı: MATERIALS SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1211-1214
  • Anahtar Kelimeler: Aluminium, Casting, Optical microscopy, Intermetalic, WEAR PROPERTIES, TI ADDITION
  • Kocaeli Üniversitesi Adresli: Evet

Özet

The present paper reports the existence and morphology of intermetallic particles in Al-Si-xTi cast alloys. Near eutectic Al-Si alloys with 0, 0.1, 1, 2, and 5% Ti have been utilised for this purpose. Metallographic observations were made by the combination of an optical microscope and a scanning electron microscope. Wear tests were performed in a pin on disc tribometer under dry sliding conditions. The addition of Ti to the Al-Si alloys led to the precipitation of TiAlSi intermetallic phase. By increasing Ti content, hardness increases due to increasing volume fraction of relatively hard intermetallics.