A model for hydride-induced embrittlement in zirconium-based alloys
(1997) In Journal of Nuclear Materials 249(2-3). p.231-238- Abstract
The critical stress intensity factor for hydrided zirconium-alloys is calculated using a Dugdale type model for a finite crack. The hydride platelets are assumed to surround the ends of the crack. They are located in the process region of the crack tip. The model is used to calculate the temperature dependence of the critical stress intensity factor and the results are compared with measurements performed on Zr-2.5Nb and Zircaloy. The model in general describes the experimental data satisfactorily, nevertheless, it gives implausible results for a certain range of temperatures. The deficiency is attributed to the lack of appropriate constitutive relations for the hydrided zirconium-based alloys.
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- author
- Wäppling, D. ; Massih, A. R. and Ståhle, P. LU
- publishing date
- 1997-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Nuclear Materials
- volume
- 249
- issue
- 2-3
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0031245394
- ISSN
- 0022-3115
- DOI
- 10.1016/S0022-3115(97)00183-9
- language
- English
- LU publication?
- no
- id
- 63396392-2352-4a11-96c7-5eac139da61b
- date added to LUP
- 2020-03-07 11:20:22
- date last changed
- 2022-04-11 00:49:54
@article{63396392-2352-4a11-96c7-5eac139da61b,
abstract = {{<p>The critical stress intensity factor for hydrided zirconium-alloys is calculated using a Dugdale type model for a finite crack. The hydride platelets are assumed to surround the ends of the crack. They are located in the process region of the crack tip. The model is used to calculate the temperature dependence of the critical stress intensity factor and the results are compared with measurements performed on Zr-2.5Nb and Zircaloy. The model in general describes the experimental data satisfactorily, nevertheless, it gives implausible results for a certain range of temperatures. The deficiency is attributed to the lack of appropriate constitutive relations for the hydrided zirconium-based alloys.</p>}},
author = {{Wäppling, D. and Massih, A. R. and Ståhle, P.}},
issn = {{0022-3115}},
language = {{eng}},
month = {{01}},
number = {{2-3}},
pages = {{231--238}},
publisher = {{Elsevier}},
series = {{Journal of Nuclear Materials}},
title = {{A model for hydride-induced embrittlement in zirconium-based alloys}},
url = {{http://dx.doi.org/10.1016/S0022-3115(97)00183-9}},
doi = {{10.1016/S0022-3115(97)00183-9}},
volume = {{249}},
year = {{1997}},
}