Radiation-hardening and nano-cluster formation in neutron-irradiated 9Cr–2W low activation steels with different Si contents

Y. F. Zhang, Q. Zhan, S. Ohnuki, A. Kimura, F. R. Wan, K. Yoshida, Y. Nagai

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Two kinds of 9Cr–2W steels with and without the addition of 0.1 wt% Si were irradiated with neutrons up to a fluence of 4.8 × 10 23 n/m 2 at 563 K. Precipitates, dislocation loops, radiation-enhanced nano-clusters and radiation-hardening were studied using advanced electron microscopy and micro-hardness test. Si reduced the number density of dislocation loops, and therefore the extent of radiation-hardening decreased. It also favored the formation of silicide-like nano-clusters. In this study, the role of Si in neutron irradiated 9Cr–2W steels is discussed, and then extended to nano-clusters and irradiation-hardening.

本文言語English
ページ(範囲)1-8
ページ数8
ジャーナルJournal of Nuclear Materials
517
DOI
出版ステータスPublished - 2019 4 15

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 材料科学(全般)
  • 原子力エネルギーおよび原子力工学

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