Viscosity Values of Ternary Au-Ag-Cu, Al-Cu-Si and Quaternary Al-Cu-Mg-Si Alloy Systems

Year 2023, , 865 - 873, 31.08.2023

Hüseyin Arslan

https://doi.org/10.35414/akufemubid.1198907

Abstract

In this study, the viscosities of the ternary Au-Ag-Cu and Al-Cu-Si liquid alloy systems, and of the quaternary Al-Cu-Mg-Si liquid alloy system were determined as functions of gold, aluminium and copper. Using different geometric models, the first alloy system Au-Ag-Cu (xAg / xCu=0.543) was calculated at 1373 K, the second alloy systems Alx(Cu50-Si50)(1-x), Cux(Al50-Si50)(1-x) at 1375 K, the third alloy system Al-Cu7.6-Mg1.99-Si34.76 at 1500 K. All results, especially those calculated with the Muggianu model, accorded with the experimental results. It was observed that Al-Cu-Mg-Si alloys showed great compositional dependence as a function of aluminium in xSi = xCu, xMg / xCu = r and r = 0.1, 0.5, 1 ratios. The viscosity values accompanying the aluminium composition values between 0.4 and 0.8 were found to be ranging between a maximum of 1.4 mPas and a minimum of 0.3 mPas.

Keywords

Viscosity, Geometric models, Au-Ag-Cu, Al-Cu-Si ternary alloys, Al-Cu-Mg-Si quaternary alloys

Üçlü Au-Ag-Cu, Al-Cu-Si ve Dörtlü Al-Cu-Mg-Si Alaşım Sistemlerinin Viskozite Değerleri

Abstract

Bu çalışmada, üçlü Au-Ag-Cu sıvı alaşım sisteminin, Al-Cu-Si sıvı alaşım sisteminin ve dörtlü Al-Cu-Mg-Si sıvı alaşım sisteminin viskoziteleri altının, aliminyumun ve bakırın bir fonksiyonu olarak Au-Ag-Cu (xAg / xCu=0.543) 1373 K de, Alx(Cu50-Si50)(1-x), Cux(Al50-Si50)(1-x) 1375 K de ve Al-Cu7.6-Mg1.99-Si34.76 1500 K de farklı geometrik modeller kullanılarak hesaplanmıştır. Tüm sonuçlar, özellikle de Muggianu modeli ile hesaplanan sonuçlar, deneysel sonuçlarla iyi bir uyum göstermiştir. xSi = xCu, xMg / xCu = r ve r = 0.1, 0.5, 1 oranlarda Al-Cu-Mg-Si alaşımlarının viskozitelerinin alüminyumun bir fonksiyonu olarak büyük bileşimsel bağımlılık gösterdiği ve Al kompozisyonunun (0.4-0.8) arasındaki değerlerine eşlik eden viskozite değerlerinin max. ve min. (1.4-0.3) mPas olduğu görüldü.

Keywords

Viskozite, Geometrik modeller, Au-Ag-Cu, Al-Cu-Si üçlü alaşımları, Al-Cu-Mg-Si dörtlü alaşımları

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