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Irradiation Creep–Swelling Interaction in Modified 316 Stainless Steel up to 200 dpa

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Title: Irradiation Creep–Swelling Interaction in Modified 316 Stainless Steel up to 200 dpa
Authors: UKAI, Shigeharu Browse this author →KAKEN DB
OHTSUKA, Satoshi Browse this author
Keywords: irradiation creep
irradiation creep–swelling interaction
PNC316
climb-controlled glide process of dislocation
precipitate sink
void sink
dislocation sink
Issue Date: 25-May-2007
Publisher: Atomic Energy Society of Japan
Journal Title: Journal of Nuclear Science and Technology
Volume: 44
Issue: 5
Start Page: 743
End Page: 757
Publisher DOI: 10.3327/jnst.44.743
Abstract: The irradiation creep–swelling interaction parameters were precisely derived for MONJU fuel pin cladding PNC316 by irradiation tests of pressurized tubes in FFTF. It was found out that a creep–swelling coupling coefficient decreased and asymptotically approached a constant value as the swelling progresses, although it was widely believed that the irradiation creep rate ould be proportional to the swelling rate. This non-proportionality in the irradiation creep–swelling interaction was investigated by means of the rate theory analyses under sequential climb-controlled lide process of dislocation due to absorption of nterstitial atoms. It was clarified through a constructed robust model that the presence of a precipitate sink should upset the proportionality of the net interstitial flux into dislocations to the net vacancy flux into the voids. In addition, irradiation creep parameters derived by material irradiation was demonstrated to be applicable for reasonably predicting the irradiation creep deformation in the fuel pins.
Rights: This is a preprint of an article whose final and definitive form has been published in the Journal of Nuclear Science and Technology © 2007 Taylor & Francis. Journal of Nuclear Science and Technology is available online at: www.tandfonline.com with the open URL of your article.
https://doi.org/10.1080/18811248.2007.9711863
Type: article (author version)
URI: http://hdl.handle.net/2115/49106
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鵜飼 重治

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