open access

https://hdl.handle.net/2115/49106

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

英語

dislocation sink

2007-05-25

Atomic Energy Society of Japan

Journal of Nuclear Science and Technology

44(5)

743-757

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.

学術雑誌論文

Accepted Manuscript

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Nuclear Science and Technology on 2007, available online: http://www.tandfonline.com/10.1080/18811248.2007.9711863.

0022-3131

AA00703720