Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 504, Issue -, Pages 79-83Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2018.03.008
Keywords
Zirconium alloy; Precipitates; Transmission electron microscopy; Electron diffraction; Crystal structure
Funding
- National Science Foundation of China [51501021, 51531005, 51421001]
- Fundamental Research Funds for the Central Universities [106112017CDJXY130002, 106112017CDJQJ138803]
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A new Zr-(Fe, Cu) phase was found in furnace-cooled Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cu alloy and alloys aged at 580 degrees C for 10min, 2 h and 10 h. Electron diffraction experiment shows the crystal structure of this phase to be body-centered tetragonal with unit cell dimensions determined to be a = b = 6.49 angstrom, c = 5.37 angstrom. Its possible space groups have been discussed and the reason accounting for its formation is believed to be the addition of Cu according to the atom-level images. In addition, no crystal structural or chemical composition changes were observed throughout the aging process. (C) 2018 Elsevier B.V. All rights reserved.
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