SANS and TEM of ferritic–martensitic steel T91 irradiated in FFTF up to 184 dpa at 413 °C

Joris Van den Bosch; Osman Anderoglu; Robert Dickerson; Monika Hartl; Patricia Dickerson; Jeff Aguiar; Peter Hosemann; Mychailo Toloczko; Stuart Maloy; Serguei Gavrilov

doi:10.1016/j.jnucmat.2013.04.025

SANS and TEM of ferritic–martensitic steel T91 irradiated in FFTF up to 184 dpa at 413 °C

Joris Van den Bosch, Osman Anderoglu, Robert Dickerson, Monika Hartl, Patricia Dickerson, Jeff Aguiar, Peter Hosemann, Mychailo Toloczko, Stuart Maloy, Serguei Gavrilov

Conditioning and Chemistry Programme

Research output › peer-review

Abstract

Ferritic–martensitic steel T91 was previously irradiated in the Materials Open Test Assembly (MOTA) program of the Fast Flux Test Reactor Facility (FFTF) at 413 C up to 184 dpa. The microstructure was analyzed by small angle neutron scattering (SANS) and transmission electron microscopy (TEM). Both SANS and TEM revealed a large fraction of voids with an average size of 29–32 nm leading to a calculated void swelling of 1.2–1.6% based on the volume fraction of the voids in the sample. SANS gave no indication of second phase particles having formed under irradiation in the material. Using TEM, one zone was found where a few G-phase particles were analyzed. Quantities were however too low to state reliable particle densities. No alpha prime (a0) or Laves phase were observed in any of the investigated zones.

Original language	English
Pages (from-to)	91-97
Journal	Journal of Nuclear Materials
Volume	440
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2013.04.025
State	Published - Sep 2013

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Cite this

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title = "SANS and TEM of ferritic–martensitic steel T91 irradiated in FFTF up to 184 dpa at 413 °C",

abstract = "Ferritic–martensitic steel T91 was previously irradiated in the Materials Open Test Assembly (MOTA) program of the Fast Flux Test Reactor Facility (FFTF) at 413 C up to 184 dpa. The microstructure was analyzed by small angle neutron scattering (SANS) and transmission electron microscopy (TEM). Both SANS and TEM revealed a large fraction of voids with an average size of 29–32 nm leading to a calculated void swelling of 1.2–1.6% based on the volume fraction of the voids in the sample. SANS gave no indication of second phase particles having formed under irradiation in the material. Using TEM, one zone was found where a few G-phase particles were analyzed. Quantities were however too low to state reliable particle densities. No alpha prime (a0) or Laves phase were observed in any of the investigated zones.",

keywords = "T91, 184 dpa, SANS, TEM",

author = "{Van den Bosch}, Joris and Osman Anderoglu and Robert Dickerson and Monika Hartl and Patricia Dickerson and Jeff Aguiar and Peter Hosemann and Mychailo Toloczko and Stuart Maloy and Serguei Gavrilov",

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T1 - SANS and TEM of ferritic–martensitic steel T91 irradiated in FFTF up to 184 dpa at 413 °C

AU - Van den Bosch, Joris

AU - Anderoglu, Osman

AU - Dickerson, Robert

AU - Hartl, Monika

AU - Dickerson, Patricia

AU - Aguiar, Jeff

AU - Hosemann, Peter

AU - Toloczko, Mychailo

AU - Maloy, Stuart

A2 - Gavrilov, Serguei

N1 - Score = 10

PY - 2013/9

Y1 - 2013/9

N2 - Ferritic–martensitic steel T91 was previously irradiated in the Materials Open Test Assembly (MOTA) program of the Fast Flux Test Reactor Facility (FFTF) at 413 C up to 184 dpa. The microstructure was analyzed by small angle neutron scattering (SANS) and transmission electron microscopy (TEM). Both SANS and TEM revealed a large fraction of voids with an average size of 29–32 nm leading to a calculated void swelling of 1.2–1.6% based on the volume fraction of the voids in the sample. SANS gave no indication of second phase particles having formed under irradiation in the material. Using TEM, one zone was found where a few G-phase particles were analyzed. Quantities were however too low to state reliable particle densities. No alpha prime (a0) or Laves phase were observed in any of the investigated zones.

AB - Ferritic–martensitic steel T91 was previously irradiated in the Materials Open Test Assembly (MOTA) program of the Fast Flux Test Reactor Facility (FFTF) at 413 C up to 184 dpa. The microstructure was analyzed by small angle neutron scattering (SANS) and transmission electron microscopy (TEM). Both SANS and TEM revealed a large fraction of voids with an average size of 29–32 nm leading to a calculated void swelling of 1.2–1.6% based on the volume fraction of the voids in the sample. SANS gave no indication of second phase particles having formed under irradiation in the material. Using TEM, one zone was found where a few G-phase particles were analyzed. Quantities were however too low to state reliable particle densities. No alpha prime (a0) or Laves phase were observed in any of the investigated zones.

KW - T91

KW - 184 dpa

KW - SANS

KW - TEM

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_130542

UR - http://knowledgecentre.sckcen.be/so2/bibref/10471

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DO - 10.1016/j.jnucmat.2013.04.025

M3 - Article

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JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

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