Effect of the cooling in the austempering process on the abrasive wear behavior of austempered ductile iron
Küçük Resim Yok
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, ductile iron was austenised at 900°C for 1 h and austempered at 400°C for 2 h in single step austempering process, whereas it was austenised at 900°C for 1 h and immediately quenched in a salt bath at 400°C for 10 minutes and then the temperature of bath was decreased by 1.88°C per minutes down to 250°C in two-step austempering process. The upper ausferritic austempered ductile iron (ADI) specimens produced by conventional single step austempering process and the upper and lower ausferritic specimens produced by two-step austempering process were abraded on the pin on disc apparatus under the normal load of 10, 20, 30 N, by rubbing the specimens on abrasive Al 2O 3 grains with diameters of 180 Mesh (80 ?m). Although the ductile iron austempered in two steps had higher hardness than the ductile iron austempered in single step, they showed similar abrasive wear behavior. In addition, the abrasive wear resistance of two step austempered specimen increased with increasing applied load.
Açıklama
Anahtar Kelimeler
Abrasive wear, Austempered ductile iron, Hardness, Microstructure
Kaynak
Journal of the Faculty of Engineering and Architecture of Gazi University
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
21
Sayı
2
