Response of metallic glasses Fe/sub 40/Ni/sub 40/P/sub 14/B/sub 6/ and Fe/sub 80/B/sub 20/ to irradiation with 800-MeV protons
Metallic glasses with compositions of Fe/sub 40/Ni/sub 40/P/sub 14/B/sub 6/ and Fe/sub 80/B/sub 20/ were irradiated in the 800 MeV proton beam at the Los Alamos Meson Physics Facility while the electrical resistance and length changes were monitored. The resistance and the length of the first alloy were both found to increase and saturate with dose to ..delta..R/R approx. = 5 x 10/sup -3/ and ..delta..L/L approx. = 2 x 10/sup -3/. For the second alloy the total dose of 1.1 x 10/sup 19/ p/cm/sup 2/, which was calculated to give roughly 0.12 dpa, was slightly less than that required for saturation. No annealing of these increases was observed for anneals from room temperature to 250/sup 0/C. These results are interpreted in terms of a model in which collision cascades create small regions of increased atomic disorder which fully overlap each other at saturation.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6128863
- Report Number(s):
- LA-UR-81-2266; CONF-810831-17; ON: DE81028705
- Country of Publication:
- United States
- Language:
- English
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