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Precipitation process in a Cu-Ni-Be alloy
http://hdl.handle.net/2297/29206
http://hdl.handle.net/2297/292064d2d0640-8aeb-441f-838c-f2fbffad5b79
名前 / ファイル | ライセンス | アクション |
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TE-PR-WATANABE-C-432.pdf (509.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Precipitation process in a Cu-Ni-Be alloy | |||||
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 | |||||
著者 |
Watanabe, Chihiro
× Watanabe, Chihiro× Monzen, Ryoichi |
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書誌情報 |
Diffusion and Defect Data Pt.B: Solid State Phenomena 巻 172-174, p. 432-436, 発行日 2011-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1012-0394 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10691162 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.4028/www.scientific.net/SSP.172-174.432 | |||||
出版者 | ||||||
出版者 | Trans Tech Publications | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The precipitation process in an aged Cu-1.9wt%Ni-0.3wt%Be alloy has been examined by high-resolution transmission electron microscopy. The precipitation sequence found is: Guinier-Preston (G.P.) zones → γ″ → γ′ → stable γ. The disk-shaped G.P. zones and the disk-shaped γ″, γ′ and γ precipitated phases are composed of monolayers of Be atoms on {100}α of the Cu matrix and alternative Be and Ni matrix layers parallel to {100}α. The γ′' phases consisting of two to eight Be-layers has a body-centered tetragonal (bct) lattice with a=b=0.24 nm and c=0.28 nm. The γ′ or γ phase is bct with a=b=0.24 nm and c=0.26 nm or a=b=0.26 nm and c=0.27 nm. The γ′', γ′ or γ phase aligns with the matrix according to the Bain orientation relationship. The growth kinetics of disk-shaped γ precipitates on aging at 500°C has been also investigated. The {001}α habit planes of the γ precipitates migrate by a ledge mechanism. The average thickness of the γ disks increases with aging time t as t1/2. An analysis of experimental data using a kinetic model yields the diffusivity of solute in the Cu matrix, which is in agreement with the reported diffusivity of Ni in Cu. © (2011) Trans Tech Publications. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |