SOLIDIFICATION CHARACTERISTICS AND MICROSTRUCTURAL EVOLUTION OF Zn-1.26 wt.% Al ALLOY
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
WORLD SCIENTIFIC PUBL CO PTE LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Zn-1.26 wt.% Al alloy was directionally solidified upward with a constant growth rate (V 16.6 mu m/s) in a wide range of temperature gradients (G = 1.94-5.15 K/mm) and with a constant temperature gradient (G = 5.15 K/mm) in a wide range of growth rates (V = 8.3-500 mu m/s) with a Bridgman-type directional solidification furnace. Microstructure parameters, the primary dendrite arm spacing (lambda(1)), secondary dendrite arm spacing (lambda(2)) and dendrite tip radius (R), were measured and expressed as functions of G and V by using a linear regression analysis method. It was found that the values of lambda(1), lambda(2) and R decrease with increasing values of V and G. The experimental results were compared with the main predictive theoretical and experimental works for dendritic spacings.
Açıklama
Anahtar Kelimeler
Metals and alloys, solidification, microstructure
Kaynak
SURFACE REVIEW AND LETTERS
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
18
Sayı
6
