A New Method of Evaluation of Liquidus Temperatures of Ternary Alloys

This paper presents results of liquidus surface estimation of ternary Sn-Pb-Bi and Sn-Pb-In alloys applying a method which is based on the property of 3D ternary phase diagrams to form smooth surfaces in specific composition and temperature range. Standard program for solid modeling is applied for construction of liquidus surface of an alloy using phase diagrams of three subsystem binary alloys and only a few experimental data. Advantage of presented method is the possibility of 3D graphical representation and determination of liquidus temperature of arbitrary composition of considered ternary alloy