skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: In situ HVEM studies of phase transformation in Zr alloys and compounds under irradiation

Abstract

The High Voltage Electron Microscope (HVEM)/Tandem facility at Argonne National Laboratory has been used to conduct detailed studies of the phase stability and microstructural evolution in zirconium alloys and compounds under ion and electron irradiation. Detailed kinetic studies of the crystalline-to-amorphous transformation of the intermetallic compounds Zr{sub 3}(Fe{sub 1-x}Ni{sub x}), Zr(Fe{sub 1-x},Cr{sub x}){sub 2}, Zr{sub 3}Fe, and Zr{sub 1.5} Nb{sub 1.5} Fe, both as second phase precipitates and in bulk form, have been performed using the in-situ capabilities of the Argonne facility, under a variety of irradiation conditions (temperature, dose rate). Results include a verification of a dose rate effect on amorphization and the influence of material variables (stoichiometry x, presence of stacking faults, crystal structure) on the critical temperature and on the critical dose for amorphization. Studies were also conducted of the microstructural evolution under irradiation of specially tailored binary and ternary model alloys. The stability of the {omega}-phase in Zr-20%Nb under electron and Ar ion irradiation was investigated as well as the {beta}-phase precipitation in Zr-2.5%Nb under Ar ion irradiation. The ensemble of these results is discussed in terms of theoretical models of amorphization and of irradiation-altered solubility.

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)
  3. Argonne National Lab., IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
198703
Report Number(s):
ANL/MSD/CP-88946; CONF-960202-7
ON: DE96006731; TRN: 96:008516
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996; Other Information: PBD: Jan 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 22 NUCLEAR REACTOR TECHNOLOGY; ZIRCONIUM BASE ALLOYS; PHYSICAL RADIATION EFFECTS; INTERMETALLIC COMPOUNDS; FUEL CANS; TUBES

Citation Formats

Motta, A T, Faldowski, J A, Howe, L M, and Okamoto, P R. In situ HVEM studies of phase transformation in Zr alloys and compounds under irradiation. United States: N. p., 1996. Web.
Motta, A T, Faldowski, J A, Howe, L M, & Okamoto, P R. In situ HVEM studies of phase transformation in Zr alloys and compounds under irradiation. United States.
Motta, A T, Faldowski, J A, Howe, L M, and Okamoto, P R. 1996. "In situ HVEM studies of phase transformation in Zr alloys and compounds under irradiation". United States. https://www.osti.gov/servlets/purl/198703.
@article{osti_198703,
title = {In situ HVEM studies of phase transformation in Zr alloys and compounds under irradiation},
author = {Motta, A T and Faldowski, J A and Howe, L M and Okamoto, P R},
abstractNote = {The High Voltage Electron Microscope (HVEM)/Tandem facility at Argonne National Laboratory has been used to conduct detailed studies of the phase stability and microstructural evolution in zirconium alloys and compounds under ion and electron irradiation. Detailed kinetic studies of the crystalline-to-amorphous transformation of the intermetallic compounds Zr{sub 3}(Fe{sub 1-x}Ni{sub x}), Zr(Fe{sub 1-x},Cr{sub x}){sub 2}, Zr{sub 3}Fe, and Zr{sub 1.5} Nb{sub 1.5} Fe, both as second phase precipitates and in bulk form, have been performed using the in-situ capabilities of the Argonne facility, under a variety of irradiation conditions (temperature, dose rate). Results include a verification of a dose rate effect on amorphization and the influence of material variables (stoichiometry x, presence of stacking faults, crystal structure) on the critical temperature and on the critical dose for amorphization. Studies were also conducted of the microstructural evolution under irradiation of specially tailored binary and ternary model alloys. The stability of the {omega}-phase in Zr-20%Nb under electron and Ar ion irradiation was investigated as well as the {beta}-phase precipitation in Zr-2.5%Nb under Ar ion irradiation. The ensemble of these results is discussed in terms of theoretical models of amorphization and of irradiation-altered solubility.},
doi = {},
url = {https://www.osti.gov/biblio/198703}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: