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Role of Nb in Improving the Cyclic Stability of V-Ti-Cr Alloys
https://repo.qst.go.jp/records/80411
https://repo.qst.go.jp/records/8041147c16c17-e1bf-4927-a10e-de5e3ad88236
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-09-02 | |||||
タイトル | ||||||
タイトル | Role of Nb in Improving the Cyclic Stability of V-Ti-Cr Alloys | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kim, Hyunjeong
× Kim, Hyunjeong× Sakaki, Kouji× Asano, Kohta× Matsumura, Daiju× Machida, Akihiko× Watanuki, Tetsu× Noritake, Tatsuo× Aoki, Masakazu× Nakamura, Jin× Fuura, Tatsuya× Nakamura, Yumiko× Machida, Akihiko× Watanuki, Tetsu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | V-Ti-Cr合金の水素の繰返し吸蔵放出能の劣化は僅かなNbの添加で劇的に改善するが、Nbの繰り返し耐久性への寄与は明らかではない。本研究ではNbの添加効果を明らかにするために、 V0.25Ti0.25Cr0.5H2と V0.25Ti0.25Cr0.45Nb0.05H2の水素吸蔵放出サイクルによる局所構造の変化をX線原子二体分布関数とEXAFSによって調べた。本研究によって水素吸蔵放出の繰返し過程で、転位によるひずみを低減させるために大きなTi原子が転位中心へ引きずられることが示唆された。これは、水素吸蔵に高い水素ガス圧が必要になるため転位近傍のTiが少ない領域が残ることになるが、NbはTiの偏析を抑制している可能性が高い。 | |||||
書誌情報 |
SPring-8/SACLA Research Report 巻 8, 号 2, p. 187-190, 発行日 2020-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2187-6886 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.18957/rr.8.2.187 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://user.spring8.or.jp/resrep/?p=12348 |