The effects of cooling slope casting and isothermal treatment on wear behavior of A380 Alloy

SAKLAKOĞLU N., Gencalp S., KASMAN Ş.

International Conference on Advances in Materials and Processing Technologies, AMPT 2009, Malezya, 26 - 29 Ekim 2009, cilt.264-265, ss.42-47, (Tam Metin Bildiri) identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 264-265
  • Doi Numarası: 10.4028/www.scientific.net/amr.264-265.42
  • Basıldığı Ülke: Malezya
  • Sayfa Sayıları: ss.42-47
  • Anahtar Kelimeler: Globular microstructure, Cooling slope casting, Wear
  • Manisa Celal Bayar 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 °C. After the casting process, isothermal treatment was carried out at 565 °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. © (2011) Trans Tech Publications, Switzerland.