Phase equilibria in Co−Al−Re ternary system at 1100 and 1300 °C

Abstract Isothermal sections of the Co−Al−Re ternary system at 1100 and 1300 °C were determined experimentally by electron probe microanalysis and X-ray diffraction. The results show that there are seven three-phase regions in the 1100 °C isothermal section and five three-phase regions in the 1300 °C isothermal section. The solid solubilities of αCo, eRe and CoAl increase a little with temperature increasing from 1100 to 1300 °C. The solubility of Co in compounds AlRe2, Al11Re4 and Al4Re is negligible,