Development of toughened, fine grained, recrystallized W-1.1%tic

Shunsuke Makimura, Hiroaki Kurishita, Koichi Niikura, Hun Chea Jung, Hiroyuki Ishizaki, Atsuro Kimura, Masahiro Onoi, Yutaka Nagasawa, Tatsuaki Sakamoto, Hiroaki Ohfuji

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Citations (Scopus)


Tungsten (W) is a principal candidate as target material because of its high density and extremely high melting point. W inherently has a critical disadvantage of its brittleness at around room temperature (low temperature brittleness), recrystallization embrittlement, and irradiation embrittlement. TFGR (Toughened, Fine Grained, Recrystallized) W-1.1%TiC has been considered as a realized solution to the embrittlement problems. We started to fabricate TFGR W-1.1%TiC in 2016 under collaboration between KEK and Metal Technology Co. LTD (MTC). The TFGR W-1.1%TiC samples have been successfully fabricated since June, 2018. As a result, the specimen showed slight bend ductility and 2.7 GPa of fracture strength.

Original languageEnglish
Title of host publicationMaterials Science Forum
PublisherTrans Tech Publications Ltd
Number of pages7
Publication statusPublished - 2021

Publication series

NameMaterials Science Forum
Volume1024 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


  • Irradiation embrittlement
  • Proton Accelerator Target
  • Recrystallization embrittlement
  • Tungsten


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