In-Bi-Sn üçlü alaşımında deneysel sonuçların teorik ötektik model ile karşılaştırılması

Yıl 2010, Cilt: 26 Sayı: 1, 71 - 76, 01.02.2010

Uğur Böyük Necmettin Maraşlı

Öz

Bu çalışmada, In-Bi-Sn ötektik alaşımı için ötektik mesafe değerleri, (λ) bu alaşımın fiziksel parametreleri kullanılarak Wilde-Froyen-Witusiewicz-Hecht (WFWH) teorik modeli ile hesaplandı. Ötektik mesafelerin teorik değerleri, InBi-Sn ve In-Bi-Cd üçlü alaşımları için elde edilen deneysel sonuçlarla karşılaştırıldı. Hesaplanan ötektik mesafe değerlerinin deneysel değerlere oldukça yakın olduğu tespit edildi. Ayrıca, In-Bi-Sn alaşım sistemi için yüksek hızlarda teorik olarak hesaplanan ötektik mesafe değerlerinin farklı araştırmacılar tarafından düşük hızlarda deneysel olarak ölçülen değerlerle oldukça uyumlu olduğu, diğer taraftan, In-Bi-Cd ötektik sistemi için elde edilen deneysel λ değerlerinin In-Bi-Sn öteklik sistemi için teorik ve deneysel olarak elde edilen λ değerlerinden daha büyük olduğu tespit edildi

Anahtar Kelimeler

Ternary alloys Directional solidification Eutectics Microstructure Theoretical models

Comparison of experimental results with theoretical eutectic model in In-Bi-Sn ternary alloy

Öz

In present work, values of eutectic spacing (λ) for In-Bi-Sn eutectic alloy were calculated with Wilde-Froyen-Witusiewicz-Hecht’s (WFWH) theoretical model by using the physical parameters of In-Bi-Sn eutectic alloy. The theoretical values of eutectic spacing have been compared with the experimental results obtained from In-Bi-Sn and In-Bi-Cd ternary alloys. It was found that, the values of theoretical eutectic spacings are very close the values of the experimental eutectic spacing for In-Bi-Sn eutectic alloy. Moreover, it was also found that, the theoretical eutectic spacing values at high-speed ranges are highly compatible with the experimental results obtained by different researchers at low-speed ranges for In-Bi-Sn eutectic alloy, in the other hand, the experimental values of λ for In-Bi-Cd eutectic alloy are fairly higher than experimental and theoretical values of λ for In-Bi-Sn eutectic alloy

Anahtar Kelimeler

Üçlü alaşımlar Doğrusal katılaştırma Ötektikler Mikroyapı Teorik modeller

Kaynakça

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