Al-Si ALAŞIMLARINDA SİLİSYUM MİKTARININ DÖKÜM PARÇA-KALIP ARAYÜZEY ISI TRANSFER KATSAYISI ÜZERİNE ETKİSİ

Yıl 2007, Cilt: 22 Sayı: 3, 0 - , 15.02.2013

Neşet Akar Necati Yalçın

Öz

Bu çalışmanın amacı katılaşma süresince su soğutmalı bakır soğutucu üzerinde tek yönlü dikey olarak katılaşanAl-Si alaşımlarında silisyum içeriğinin arayüzey ısı transferi katsayısına etkisini incelemektir. Arayüzey ısıtransfer katsayısı silisyum içeriğine bağlı olarak, Sonlu Farklar Metoduna dayalı FORTRAN programı ilebelirlenmiştir. Sonuç olarak; arayüzey ısı transfer katsayısı silisyum içeriğinin azalması ile artmıştır, maksimumarayüzey ısı transfer katsayısı değerleri; %7Si’de 8900 W/m2K, %5Si’de 14600 W/m2K ve %3Si’de 19100W/m2K olarak elde edilmiştir.

Anahtar Kelimeler

Döküm-kalıp arayüzeyi, Al-Si alaşımları, ısı transfer katsayısı, sonlu farklar metodu.

Kaynakça

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