ウエダ　ヨシオ   Ueda Yoshio   上田　良夫    所属   追手門学院大学  理工学部 電気電子工学科    職種   教授
言語種別	英語
発行・発表の年月	2013
形態種別	論文
査読	査読あり
標題	Development of nanostructured tungsten based materials resistant to recrystallization and/or radiation induced embrittlement
執筆形態	共著・編著（代表編著を除く）
掲載誌名	Materials Transactions
掲載区分	国外
巻・号・頁	54(4),pp.456-465
国際共著	国際共著
著者・共著者	H. Kurishita,H. Arakawa,S. Matsuo,T. Sakamoto,S. Kobayashi,K. Nakai,G. Pintsuk,J. Linke,S. Tsurekawa,V. Yardley,K. Tokunaga,T. Takida,M. Katoh,A. Ikegaya,Y. Ueda,M. Kawai,N. Yoshida
概要	Mitigation of embrittlement caused by recrystallization and radiation is the key issue of tungsten (W based materials for use in the advanced nuclear system such as fusion reactor applications. In this paper, our nanostructured W materials development performed so far to solve the key issue is reviewed, including new original data. Firstly, the basic concept of mitigation of the embrittlement is shown. The approach to the concept has yielded ultra-fine grained, recrystallized (UFGR) W(0.251.5) mass%TiC compacts containing fine TiC dispersoids (precipitates). The UFGR W(0.251.5)% TiC exhibits favorable as well as unfavorable features from the viewpoints of microstructures and various thermo-mechanical properties including the response to neutron and ion irradiations. Most of the unfavorable features stem from insufficient strengthening of weak random grain boundaries (GBs) in the recrystallized state.
DOI	10.2320/matertrans.MG201209
ISSN	1345-9678