Partitioning of Re between γ and γ′ phase in nickel-base superalloys

The partitioning behavior of the elements W, Mo, Re, Ru and Ir of three experimental nickel-base superalloys was investigated. For comparative studies ternary and quaternary alloys were produced and analyzed. The distribution coefficient of Re is shown to be a function of composition. Ru and Ir do not affect the partitioning behavior of Re.