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Title: Amorphization kinetics of Zr(Cr,Fe)[sub 2] under ion irradiation

Abstract

Thin foils of Zircaloy-4 were irradiated with 350 KeV [sup 40]Ar ions in the dual ion beam/HVEM facility at Argonne National Laboratory at 300--650 K. The irradiation-induced amorphization of the intermetallic precipitates Zr (Cr; Fe)[sub 2] and Zr[sub 2] (Ni, Fe) was studied in-situ. For Zr (Cr, Fe)[sub 2] precipitates the dose-to-amorphization was found to increase exponentially with temperature, with a critical temperature of about 650 K. The amorphization morphology was shown to be homogeneous, with no preferential site for nucleation, in contrast to neutron-irradiation amorphization which started at the precipitate-matrix interface. For Zr[sub 2] (Ni,Fe) precipitates it was found that amorphization occurred at 550 and 600 K, whereas in neutron irradiation no amorphization has been observed at those temperatures. The results are discussed in context of previous neutron and electron irradiations and likely amorphization mechanisms are proposed.

Authors:
 [1];  [2];  [3]
  1. Pennsylvania State Univ., University Park, PA (United States). Dept. of Nuclear Engineering
  2. Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Labs.
  3. Argonne National Lab., IL (United States)
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6774091
Report Number(s):
ANL/MSD/CP-78354; CONF-921101-58
ON: DE93005560
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 16. Material Research Society international symposium on the scientific basis for nuclear waste management fall meeting, Boston, MA (United States), 30 Nov - 5 Dec 1992
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ZIRCALOY 4; PHYSICAL RADIATION EFFECTS; AMORPHOUS STATE; ARGON 40; ARGON IONS; CHROMIUM ALLOYS; INTERMETALLIC COMPOUNDS; ION BEAMS; IRON ALLOYS; KEV RANGE 100-1000; RADIATION DOSES; TEMPERATURE RANGE 0400-1000 K; ZIRCONIUM ALLOYS; ALLOY-ZR98SN-4; ALLOYS; ARGON ISOTOPES; BEAMS; CHARGED PARTICLES; CHROMIUM ADDITIONS; CORROSION RESISTANT ALLOYS; DOSES; ENERGY RANGE; EVEN-EVEN NUCLEI; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; IONS; IRON ADDITIONS; ISOTOPES; KEV RANGE; LIGHT NUCLEI; MATERIALS; NUCLEI; RADIATION EFFECTS; STABLE ISOTOPES; TEMPERATURE RANGE; TIN ALLOYS; ZIRCALOY; ZIRCONIUM BASE ALLOYS; 360106* - Metals & Alloys- Radiation Effects

Citation Formats

Motta, A T, Howe, L M, and Okamoto, P R. Amorphization kinetics of Zr(Cr,Fe)[sub 2] under ion irradiation. United States: N. p., 1992. Web.
Motta, A T, Howe, L M, & Okamoto, P R. Amorphization kinetics of Zr(Cr,Fe)[sub 2] under ion irradiation. United States.
Motta, A T, Howe, L M, and Okamoto, P R. 1992. "Amorphization kinetics of Zr(Cr,Fe)[sub 2] under ion irradiation". United States. https://www.osti.gov/servlets/purl/6774091.
@article{osti_6774091,
title = {Amorphization kinetics of Zr(Cr,Fe)[sub 2] under ion irradiation},
author = {Motta, A T and Howe, L M and Okamoto, P R},
abstractNote = {Thin foils of Zircaloy-4 were irradiated with 350 KeV [sup 40]Ar ions in the dual ion beam/HVEM facility at Argonne National Laboratory at 300--650 K. The irradiation-induced amorphization of the intermetallic precipitates Zr (Cr; Fe)[sub 2] and Zr[sub 2] (Ni, Fe) was studied in-situ. For Zr (Cr, Fe)[sub 2] precipitates the dose-to-amorphization was found to increase exponentially with temperature, with a critical temperature of about 650 K. The amorphization morphology was shown to be homogeneous, with no preferential site for nucleation, in contrast to neutron-irradiation amorphization which started at the precipitate-matrix interface. For Zr[sub 2] (Ni,Fe) precipitates it was found that amorphization occurred at 550 and 600 K, whereas in neutron irradiation no amorphization has been observed at those temperatures. The results are discussed in context of previous neutron and electron irradiations and likely amorphization mechanisms are proposed.},
doi = {},
url = {https://www.osti.gov/biblio/6774091}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 01 00:00:00 EST 1992},
month = {Tue Dec 01 00:00:00 EST 1992}
}

Conference:
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