Experimental partial phase diagram of the Zr–Sn–Fe system

Results of the experimental study of the phase diagram of the zirconium–tin–iron ternary system are presented. The existing phases and their equilibrium relationships in an extended area of the Gibb’s triangle, for 800 and 900 °C isothermal sections, are analyzed. For the experimental work, a set of ternary alloys was designed, produced and examined by different complementary techniques: quantitative analysis with electron-probe microanalysis (EPMA), qualitative analysis with electron scanning microscopy and X-ray energy dispersive spectrometry (EDS), X-ray diffraction and metallographic examination (with optic and electronic microscopy). Phase transformations associated with the Zr-rich region of the system were investigated with electrical resistance vs. temperature measurements. The resultant ternary phase diagram is outlined.