Funda Kahraman, Mustafa Kulekçi

6275

MICROSTRUCTURE AND EUTECTIC MORPHOLOGY OF AL-12.5°/o Si ALLOY REFINED WITH ANTIMONY

Modification of Al-Si cast alloys can be achieved in two different ways, namely by additions of certain eleınents orwith rapid cooling rate. Modifications of the Al-Si al1oys are carried out extensivcly in industry to improve themechanical properties, particularly ductility. In this study, the effects of antiınony addition.s and growth rate on theınicrostructure and eutectic morphology on the directionally solidified Al- 1 2.5°/o Si cutectic all oy has beeninvestigated. The results showed that antimony can be identified as a grain refıner. Over modification occurs in Al-12.5 °/oSi alloy when modifier is present in the amount of 1 %Sb results in AISb compound.
Anahtar Kelimeler:

Al-Si alloys, dendrite , flake , microstructure, modification

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Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi-Cover
  • ISSN: 1301-4048
  • Yayın Aralığı: 6
  • Başlangıç: 1997
  • Yayıncı: Sakarya Üniversitesi Fen Bilimleri Enstitüsü
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