Specific electric resistance and features of atomic structure of Fe-Mo-C liquid alloys

Experimental temperature-concentration dependences of specific electric resistance ρ of diluted Fe-Mo- and Fe-Mo-C-melts were analyzed and main peculiarities of interparticle interactions observed in them were considered. Experimentally established isotherms of specific electric resistance of Fe-Mo-C-melts possess two local maximums. Carbon addition leads to smoothing of these peculiarities. The obtained results can be qualitatively explained on the basis of assumptions about cluster formation in the framework of percolation theory. Dimensions of clusters formed by molybdenum atoms and evaluated with the use of Fridel sum rool, appear to be close to corresponding interatomic Mo-Mo-distances, at which the first maximum is revealed on ρ(x) isotherm