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

doi:10.4028/www.scientific.net/MSF.1024.103

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

SCI - Earth Science

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

2 Citations (Scopus)

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 have been successfully fabricated since June, 2018. As a result, the specimen showed slight bend ductility and 2.7 GPa of fracture strength.

Original language	English
Title of host publication	Materials Science Forum
Publisher	Trans Tech Publications Ltd
Pages	103-109
Number of pages	7
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.1024.103
Publication status	Published - 2021

Publication series

Name	Materials Science Forum
Volume	1024 MSF
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Keywords

Irradiation embrittlement
Proton Accelerator Target
Recrystallization embrittlement
Tungsten

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10.4028/www.scientific.net/MSF.1024.103

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Makimura, S., Kurishita, H., Niikura, K., Jung, H. C., Ishizaki, H., Kimura, A., Onoi, M., Nagasawa, Y., Sakamoto, T., & Ohfuji, H. (2021). Development of toughened, fine grained, recrystallized W-1.1%tic. In Materials Science Forum (pp. 103-109). (Materials Science Forum; Vol. 1024 MSF). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.1024.103

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

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 have been successfully fabricated since June, 2018. As a result, the specimen showed slight bend ductility and 2.7 GPa of fracture strength.",

keywords = "Irradiation embrittlement, Proton Accelerator Target, Recrystallization embrittlement, Tungsten",

author = "Shunsuke Makimura and Hiroaki Kurishita and Koichi Niikura and Jung, {Hun Chea} and Hiroyuki Ishizaki and Atsuro Kimura and Masahiro Onoi and Yutaka Nagasawa and Tatsuaki Sakamoto and Hiroaki Ohfuji",

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year = "2021",

doi = "10.4028/www.scientific.net/MSF.1024.103",

language = "English",

series = "Materials Science Forum",

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T1 - Development of toughened, fine grained, recrystallized W-1.1%tic

AU - Makimura, Shunsuke

AU - Kurishita, Hiroaki

AU - Niikura, Koichi

AU - Jung, Hun Chea

AU - Ishizaki, Hiroyuki

AU - Kimura, Atsuro

AU - Onoi, Masahiro

AU - Nagasawa, Yutaka

AU - Sakamoto, Tatsuaki

AU - Ohfuji, Hiroaki

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

KW - Irradiation embrittlement

KW - Proton Accelerator Target

KW - Recrystallization embrittlement

KW - Tungsten

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DO - 10.4028/www.scientific.net/MSF.1024.103

M3 - Chapter

AN - SCOPUS:85102974421

T3 - Materials Science Forum

SP - 103

EP - 109

BT - Materials Science Forum

PB - Trans Tech Publications Ltd

ER -

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

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