Extraction residue analysis on F82H-BA07 heat and other reduced activation ferritic/martensitic steels

Takuya Nagasaka, Yoshimitsu Hishinuma, Takeo Muroga, Yanfen Li, Hideo Watanabe, Hiroyasu Tanigawa, Hideo Sakasegawa, Masami Ando

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8 Citations (Scopus)

Abstract

Extraction residue analysis was conducted on reduced activation ferritic/martensitic steels, such as F82H-BA07 heat, F82H-IEA heat, JLF-1 JOYO heat and CLAM steel. M23C6 type precipitates, TaC precipitates and Fe2W Laves phase were identified in the present analyses. M23C6 precipitates were coarsened in F82H-BA07 compared with the other steels at as-normalized and tempered (NT) condition. TaC precipitate formation was enhanced in JLF-1 and CLAM compared with F82H-BA07 and F82H-IEA at as-NT condition. Laves phase were detected in F82H-IEA after aging above 550 °C, where solid solution W was significantly decreased. F82H-IEA exhibited hardening after aging at 400 and 500 °C for 100 khr, whereas softening at 600 and 650 °C. This behavior is similar to JLF-1 and CLAM, and can be understood by precipitation of TaC and Laves phase.

Original languageEnglish
Pages (from-to)2581-2584
Number of pages4
JournalFusion Engineering and Design
Volume86
Issue number9-11
DOIs
Publication statusPublished - Oct 1 2011

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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