Influence of nitrogen on the tendency to packing defect formation and the temperature dependence of the thermoelectromotive force in Fe-Cr alloys

The influence of nitrogen on the absolute coefficient of thermoelectromotiv e force in steel and the tendency of the material to form packing defects i s studied. The absolute coefficient of the thermo-emf increases monotonical ly with increasing nitrogen concentration. The tendency to form packing def ects increases monotonically with increasing nitrogen concentration in the range where the austenite solid solution is stable. Near the phase transiti on (austenite-martensite) this tendency increases sharply. The experiments described indicate that nitrogen influences the electron subsystem of the m etal. (C) 1999 American Institute of Physics. [S1063-7850(99)02412-X].