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The thermodynamics of Bi–In–Sn lead-free solder alloys has been studied by two different experimental techniques: torsion–effusion and differential scanning calorimetry. The results show that this ternary system at fixed Bi composition, XBi=0.20, and 565 K behaves as a non-ideal system with exothermic ΔmixHT0 passing through a minimum at XIn=0.58 and XSn=0.22. In the whole range of the quantity XSn/(XSn+XIn)...
Mathematical modeling of microsegregation in multicomponent alloys is a considerable challenge since solidification implies generally the formation of many different solid phases, each one changing the dynamics of phase transformation as the morphology becomes very complex and the kinetics phenomena more diverse. Before sophisticated models based on the resolution of partial differential mass conservation...
The ternary system Bi–Fe–Sb has been investigated using differential thermal analysis (DTA), differential scanning calorimetry (DSC) and electron probe microanalysis (EPMA). Two isoplethic sections were studied: 80 at.% Bi and 30 at.% Sb. An isothermal section of the phase diagram was also studied at 523.15 K. Three invariant reactions were found: two ternary transitory peritectics and one ternary...
Phase equilibria of the Au–In–Sn system have been investigated by Differential Scanning Calorimetry (DSC), metallographic examination, Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS) measurements. The 130 ∘ C isothermal section of the phase diagram was studied. The ternary diagram shows six three-phase fields, and one ternary Au 4 In 3 Sn...
The goal of this work is to introduce a simple method for evaluating the thixoformability of Al–Si alloys based on semisolid transformation curves obtained by differential thermal analysis (DTA), differential scanning calorimetry (DSC) and Thermo-Calc® simulation. The Al–Si alloys evaluated had a silicon content ranging from 2 to 7wt% Si and were produced by grain refining with the addition of Al5Ti1B...
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