Comparison of irradiation hardening and microstructure evolution in ion-irradiated delta and epsilon hydrides

Naoko Oono; Ryuta Kasada; Toru Higuchi; Kan Sakamoto; Masafumi Nakatsuka; Akiko Hasegawa; Sosuke Kondo; Noriyuki Y. Iwata; Hideki Matsui; Akihiko Kimura

doi:10.1016/j.jnucmat.2013.03.013

Comparison of irradiation hardening and microstructure evolution in ion-irradiated delta and epsilon hydrides

Naoko Oono, Ryuta Kasada, Toru Higuchi, Kan Sakamoto, Masafumi Nakatsuka, Akiko Hasegawa, Sosuke Kondo, Noriyuki Y. Iwata, Hideki Matsui, Akihiko Kimura

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A δ-Zr-hydride was irradiated with 6.4 MeV Fe³⁺ ions to clarify the relationship between hardening and microstructural changes of bulk Zr-hydrides under neutron irradiation. Irradiation hardening was measured by nanoindentation tests. Transmission electron microscope cross-sectional observations showed that the deformation mechanism of the δ-Zr-hydride was both slip and twinning. Dislocation loops were observed in the irradiated hydride matrix. These irradiation-induced defects make slip deformation difficult and consequently promote the twin deformation of δ-Zr-hydride. This work is a continuation of the previous our work (J. Nucl. Mater. 419 (2011) 366-370) focused upon ε-Zr-hydride and we discuss a comparison between the two Zr-hydrides.

Original language	English
Pages (from-to)	S826-S829
Journal	Journal of Nuclear Materials
Volume	442
Issue number	1-3 SUPPL.1
DOIs	https://doi.org/10.1016/j.jnucmat.2013.03.013
Publication status	Published - 2013 Oct 7
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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10.1016/j.jnucmat.2013.03.013

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Comparison of irradiation hardening and microstructure evolution in ion-irradiated delta and epsilon hydrides. / Oono, Naoko; Kasada, Ryuta; Higuchi, Toru; Sakamoto, Kan; Nakatsuka, Masafumi; Hasegawa, Akiko; Kondo, Sosuke; Iwata, Noriyuki Y.; Matsui, Hideki; Kimura, Akihiko.

In: Journal of Nuclear Materials, Vol. 442, No. 1-3 SUPPL.1, 07.10.2013, p. S826-S829.

Research output: Contribution to journal › Article › peer-review

Oono, Naoko ; Kasada, Ryuta ; Higuchi, Toru ; Sakamoto, Kan ; Nakatsuka, Masafumi ; Hasegawa, Akiko ; Kondo, Sosuke ; Iwata, Noriyuki Y. ; Matsui, Hideki ; Kimura, Akihiko. / Comparison of irradiation hardening and microstructure evolution in ion-irradiated delta and epsilon hydrides. In: Journal of Nuclear Materials. 2013 ; Vol. 442, No. 1-3 SUPPL.1. pp. S826-S829.

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abstract = "A δ-Zr-hydride was irradiated with 6.4 MeV Fe3+ ions to clarify the relationship between hardening and microstructural changes of bulk Zr-hydrides under neutron irradiation. Irradiation hardening was measured by nanoindentation tests. Transmission electron microscope cross-sectional observations showed that the deformation mechanism of the δ-Zr-hydride was both slip and twinning. Dislocation loops were observed in the irradiated hydride matrix. These irradiation-induced defects make slip deformation difficult and consequently promote the twin deformation of δ-Zr-hydride. This work is a continuation of the previous our work (J. Nucl. Mater. 419 (2011) 366-370) focused upon ε-Zr-hydride and we discuss a comparison between the two Zr-hydrides.",

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AU - Oono, Naoko

AU - Kasada, Ryuta

AU - Higuchi, Toru

AU - Sakamoto, Kan

AU - Nakatsuka, Masafumi

AU - Hasegawa, Akiko

AU - Kondo, Sosuke

AU - Iwata, Noriyuki Y.

AU - Matsui, Hideki

AU - Kimura, Akihiko

PY - 2013/10/7

Y1 - 2013/10/7

N2 - A δ-Zr-hydride was irradiated with 6.4 MeV Fe3+ ions to clarify the relationship between hardening and microstructural changes of bulk Zr-hydrides under neutron irradiation. Irradiation hardening was measured by nanoindentation tests. Transmission electron microscope cross-sectional observations showed that the deformation mechanism of the δ-Zr-hydride was both slip and twinning. Dislocation loops were observed in the irradiated hydride matrix. These irradiation-induced defects make slip deformation difficult and consequently promote the twin deformation of δ-Zr-hydride. This work is a continuation of the previous our work (J. Nucl. Mater. 419 (2011) 366-370) focused upon ε-Zr-hydride and we discuss a comparison between the two Zr-hydrides.

AB - A δ-Zr-hydride was irradiated with 6.4 MeV Fe3+ ions to clarify the relationship between hardening and microstructural changes of bulk Zr-hydrides under neutron irradiation. Irradiation hardening was measured by nanoindentation tests. Transmission electron microscope cross-sectional observations showed that the deformation mechanism of the δ-Zr-hydride was both slip and twinning. Dislocation loops were observed in the irradiated hydride matrix. These irradiation-induced defects make slip deformation difficult and consequently promote the twin deformation of δ-Zr-hydride. This work is a continuation of the previous our work (J. Nucl. Mater. 419 (2011) 366-370) focused upon ε-Zr-hydride and we discuss a comparison between the two Zr-hydrides.

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Comparison of irradiation hardening and microstructure evolution in ion-irradiated delta and epsilon hydrides

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