The temperature dependences of resistivity of the nickel heat resistant molten alloys (ZhS6U and ZhS36) are investigated. The regularities of two-step transition of the melt to equilibrium under heating are ascertained. The intermetallic coordinations at first and then the carbide ones under reasonably high heating are destructed among the short ordered structures inheritant from crystalline state. The factors, determining the values of temperatures of atomic association destruction, are established.