The Effects of Cooling Slope Casting and Isothermal Treatment on Wear Behavior of A380 Alloy

Saklakoğlu N., İrizalp S., Kasman Ş.

ADVANCED MATERIALS RESEARCH, cilt.264, sa.265, ss.42-47, 2011 (Hakemli Dergi) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 264 Sayı: 265
  • Basım Tarihi: 2011
  • Doi Numarası: 10.4028/www.scientific.net/amr.264-265.42
  • Dergi Adı: ADVANCED MATERIALS RESEARCH
  • Derginin Tarandığı İndeksler: INSPEC
  • Sayfa Sayıları: ss.42-47
  • Anahtar Kelimeler: Globular microstructure, Cooling slope casting, Wear
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, A380 aluminum alloy feedstock produced with cooling slope casting was exposed to isothermal treatment to obtain a globular microstructure which is a key feature for semisolid forming. The dendritic primary phase in the conventionally cast A380 alloy has readily transformed into a non-dendritic one in ingots cast over a cooling plate from pouring temperatures between 615, 630 and 650 degrees C. After the casting process, isothermal treatment was carried out at 565 degrees C in induction unit. Isothermal treatment yields a globular microstructure. To determine the tribological properties of this alloy, a pin-on-disc tribometer was used to carry out tribological tests under dry sliding conditions. The results showed that both cooling slope casting and isothermal treatment has an effect on tribological properties.