Study on radiation effects in boron-bear iron base amorphous alloys

The character of radiation defect accumulation, isotope effect in radiation change of electric resistance and effect of reactor radiation on thermal stability of boron-bearing amorphous iron base alloys have been investiagted. 10B nuclei fission products, appearance of which in the alloy being equal to increase of radiation intensity, are shown to make main contributions to radiation defect formation under irradiation of reacor spectrum neutrons; radiation damage in amorphous alloys under their low-temperaure (20...50 K) irradiation is not frozen and it leads to the development of relaxation processes in the alloy structure under irradiation. Amorphous alloy irradiation is found to cause the weakening of the temperature dependence of the electric resistance in the pre-recrystallization temperature interval and to expand and shift considerably the temperature region of crystallization. The supposition is made that the character of these changes is determined not only by the nature of radiation damage, but mainly by the degree and the character of change in defects distribution spectrum in sizes