Effects of Heavy-Ions on Soft-Magnetic Metallic Glasses Studied by Diffraction of Synchrotron Radiation

Abstract

In this work, influence of 238 U swift (5.9 MeV/u) heavy ions on the as-prepared Fe-Cu-Nb-Si-B metallic glass was investigated by in situ temperature X-ray diffraction of synchrotron radiation. It was observed that ion irradiation strongly affected the temperature evolution of the parameters of the first diffuse peak. It is hypothesized that ion irradiation induced structural rearrangement that increased the degree of disorder of the amorphous structure. During heat treatment, structural relaxation and annealing out of this ion-induced degradation took place. Consequently, the original structure was recovered as demonstrated by the behaviour of the first diffuse peak broadening and devitrification process.

Radiation Effects in Amorphous Metallic Alloys as Revealed by Mössbauer Spectrometry: Part II. Ion Irradiation

“…Still, CEMS spectra do not show obvious modifications of their shapes and only variations in line intensities can be seen in the TMS spectra. It should be noted that while the total fluences of light ions reached the values of ~10 18 ion/cm 2 , acceleration of heavy ions is experimentally more demanding and that is why the highest fluence is below 10 13 ion/cm 2 .…”

“…Rodriquez et al [16] successfully determined the radius of the tracks formed by swift heavy ions in various Fe-B-based AMAs using a small angle X-ray scattering technique. The use of synchrotron X-ray diffraction [17][18][19] and the so-called nuclear forward scattering of synchrotron radiation [20] have proved to be useful tools for investigation of radiation-induced dynamic transformations in AMAs by employing in situ high-temperature experiments in real time.…”