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Effect of Nb and Fe...
Effect of Nb and Fe on damage evolution in a Zr-alloy during proton and neutron irradiation
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- Francis, E. (author)
- Univ Manchester, Sch Mat, MSS Tower, Manchester M1 3BB, Lancs, England.
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- Babu, Prasath (author)
- Univ Manchester, Sch Mat, MSS Tower, Manchester M1 3BB, Lancs, England.
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- Harte, A. (author)
- Univ Manchester, Sch Mat, MSS Tower, Manchester M1 3BB, Lancs, England.
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- Martin, T. L. (author)
- Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England.;Univ Bristol, Tyndall Ave, Bristol, Avon, England.
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- Frankel, R. (author)
- Univ Manchester, Sch Mat, MSS Tower, Manchester M1 3BB, Lancs, England.
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- Jadernas, D. (author)
- Studsvik Nucl AB, Nyköping, Sweden.;Idaho Natl Lab, POB 1625, Idaho Falls, ID USA.
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- Romero, J. (author)
- Westinghouse Elect Sweden AB, Västerås, Sweden.
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- Halistadius, L. (author)
- Westinghouse Elect Co, Columbia, SC USA.
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- Bagot, P. A. J. (author)
- Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England.
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- Moody, M. P. (author)
- Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England.
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- Preuss, M. (author)
- Univ Manchester, Sch Mat, MSS Tower, Manchester M1 3BB, Lancs, England.
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Univ Manchester, Sch Mat, MSS Tower, Manchester M1 3BB, Lancs, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England.;Univ Bristol, Tyndall Ave, Bristol, Avon, England. (creator_code:org_t)
- PERGAMON-ELSEVIER SCIENCE LTD, 2019
- 2019
- English.
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In: Acta Materialia. - : PERGAMON-ELSEVIER SCIENCE LTD. - 1359-6454 .- 1873-2453. ; 165, s. 603-614
- Related links:
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https://www.research...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Detailed analysis was carried out on proton and a neutron irradiated Nb-containing Zr-alloy to study the evolution of dislocation loop size and densities as well as the formation and evolution of irradiation induced precipitation/clustering. The results obtained here have been contrasted against previously published work on a Nb-free Zr-alloy [1, 21 to investigate the mechanistic reason for the improved resistance to irradiation-induced growth of Nb-containing Zr alloys. The combined use of bright field scanning transmission electron microscopy, ultra-high-resolution energy dispersive spectroscopy and atom probe tomography analysis provides evidence of evenly distributed radiation-induced Nb dusters that have formed during the early stage of proton irradiation and Fe-rich nano-rods near Fe-containing second phase particles. The former seems to have a profound effect on loop and subsequent loop formation, keeping loop size small but number density high while loops seem to initially form at similar dose levels compared to a Nb-free alloy but loop line density does not increase during further irradiation. It is hypothesized that the formation of the Nb nano-precipitates/clusters significantly hinders mobility and growth of loops, resulting in a small size, high number density and limited ability of loops to arrange along basal traces compared to Nb-free Zr-alloys. It is suggested that it is the limited loop arrangement that slows down loop formation and the root cause for the high resistance of Nb-containing Zr-alloys to irradiation-induced growth.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Low-Sn ZIRLOrm
- Atom probe tomography
- TEM
- Radiation induced precipitation
- Clusters
- Dislocation loops
- Breakaway growth
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Francis, E.
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Babu, Prasath
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Harte, A.
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Martin, T. L.
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Frankel, R.
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Jadernas, D.
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show more...
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Romero, J.
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Halistadius, L.
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Bagot, P. A. J.
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Moody, M. P.
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Preuss, M.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Metallurgy and M ...
- Articles in the publication
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Acta Materialia
- By the university
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Royal Institute of Technology