Effect of microstructure on ion-irradiation-induced hardening in A533B model alloys at 563K

Kenta Murakami, Hiroaki Abe, Takeo Iwai, Satoshi Tamura, Yoshio Katano, Tadao Iwata, Toshihiro Nishida, Naoto Sekimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Irradiation-induced hardening was investigated in reactor pressure vessel steels, A533B, irradiated with 2.8MeV Fe2+ ion dose up to 1dpa with dose rate ranging from 10-5 to 10-3dpa/s at 563K. Alteration of local hardness was intensively measured as a function of dose and dose rate. To evaluate the local hardness, nano-indentation technique was employed to clarify the effect of microstructure, which is ferrite matrix and embedded colonial carbides. Hardening in the regions was observed with increasing dose, φt. Irradiation hardening of carbide colony regions is greater than ferrite regions higher dose than O. 1dpa. Hardening in the both regions is proportional to φt1/2 up to 1dpa. In the carbide colony region, irradiation hardening at the dose lower than 0. 1dpa was greater than that in ferrite region. Effect of dose rate was observed to be more significant at the lower dose in the carbide colony regions.

Original languageEnglish
Title of host publicationInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
PublisherAtomic Energy Society of Japan
Pages2161-2167
Number of pages7
ISBN (Electronic)9781617386084
Publication statusPublished - 2009 Jan 1
EventInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009 - Shinjuku, Tokyo, Japan
Duration: 2009 May 102009 May 14

Publication series

NameInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
Volume3

Other

OtherInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
CountryJapan
CityShinjuku, Tokyo
Period09/5/1009/5/14

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering

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