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Neutron irradiation effects on the structural, magnetic and mechanical properties of amorphous and nanocrystalline Fe{sub 73.5}Cu{sub 1}Nb{sub 3}Si{sub 13.5}B{sub 9}

Journal Article · · IEEE Transactions on Magnetics
DOI:https://doi.org/10.1109/20.312332· OSTI ID:37241
 [1];  [2]; ; ;  [3]
  1. Inst. of Experimental Physics, Kosice (Slovakia)
  2. GKSS-Forschungszentrum, Geesthacht (Germany)
  3. Technische Univ., Braunschweig (Germany). Inst. fuer Metallphysik und Nucleare Festkoerperphysik
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The response of the structural, magnetic and mechanical properties of amorphous and nanocrystalline Fe{sub 73.5}Cu{sub 1}Nb{sub 3}Si{sub 13.5}B{sub 9} to radiation damage is investigated by means of Moessbauer spectroscopy, hysteresis loop measurements and by bending tests. The irradiation of the nanocrystalline as well as differently thermally treated amorphous samples is performed in the in-core reactor position. Moessbauer experiments reveal that neutron irradiation leads to partial re-amorphization in the investigated nanocrystalline alloys. For all samples it is found that the deterioration of the soft magnetic properties occurs predominantly in the higher fluence range (10{sup 18}--10{sup 19} n{sub th}{center_dot}cm{sup {minus}2}). However, this deterioration is less significant in the noncrystalline samples. The results of the bending tests show that all samples thermally embrittled below the crystallization temperature (still amorphous) can regain the complete ductility after neutron irradiation. On the other hand, the level of embrittlement of the nanocrystalline samples remained the same even after irradiation to the fluence of 1 {times} 10{sup 19}n{sub th}{center_dot}cm{sup {minus}2}.

OSTI ID:
37241
Report Number(s):
CONF-930860--
Journal Information:
IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
COPPER ALLOYS
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
IRON BASE ALLOYS
MAGNETIC PROPERTIES
MECHANICAL TESTS
NIOBIUM ALLOYS
PHYSICAL RADIATION EFFECTS
SILICON ALLOYS