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(a) The critical casting diameter as a function of Ti concentration in a series of alloys , showing (containing 4.9% Ti) is the bulkiest glass-forming alloy; (b) The calculated isopleth, i.e., a temperature versus Ti concentration section, obtained by maintaining the compositions of Cu, Ni, and Al fixed at 31.3%, 4.0%, and 8.5%, respectively. The shaded area denotes the experimentally observed bulk glass-forming range.
XRD patterns obtained from as-cast rods with diameters of 6 and for the base alloy , for alloy A1 (containing 1.5% Ti), for alloy (containing 4.9% Ti) and for alloy A2 (containing 6.5% Ti).
DSC traces of a series of alloys (, 1.5, 3.5, 4.9, 6.5, and 8.0), with the specimens being taken from as-cast rods of these alloys. The upward arrows refer to the glass transition temperatures and the downward ones denote the onset crystallization temperatures .
XRD patterns obtained from as-cast rods with diameters of for alloys B1 , B2 , B3 , and for alloy B4 .
Critical casting diameter of ZrTiCuNiAl alloys whose compositions are obtained by partially substituting Ti for each component (i.e., Zr, “”, Cu, Ni, and Al) in a base alloy . The optimum amount of Ti replacement is determined by the thermodynamic calculations, which is corresponding to the maximum liquidus depression in each replacement scheme.
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