1. Development of Toughened, Fine Grained, Recrystallized W-1.1%TiC
- Author
-
Hiroaki Kurishita, Hiroyuki Ishizaki, Hun Chea Jung, Koichi Niikura, Masahiro Onoi, Yutaka Nagasawa, Shunsuke Makimura, Tatsuaki Sakamoto, Hiroaki Ohfuji, and Atsuro Kimura
- Subjects
010302 applied physics ,Materials science ,chemistry ,Mechanics of Materials ,Mechanical Engineering ,0103 physical sciences ,Metallurgy ,chemistry.chemical_element ,General Materials Science ,Tungsten ,Condensed Matter Physics ,01 natural sciences ,010305 fluids & plasmas - Abstract
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 were successfully fabricated in June, 2018. As a result, the specimen showed slight bend ductility and 2.6 GPa of fracture strength.
- Published
- 2021
- Full Text
- View/download PDF