WEKO3
-
RootNode
アイテム
Excess Vacancies and the Mechanism of the Slow Reaction in Aluminum-4% Copper Alloy
http://hdl.handle.net/10097/27541
http://hdl.handle.net/10097/27541e589f23f-f2f0-406c-bd98-6f1f29ec0a08
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004197717.pdf (35.6 kB)
|
|
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2008-05-02 | |||||||||
| タイトル | ||||||||||
| タイトル | Excess Vacancies and the Mechanism of the Slow Reaction in Aluminum-4% Copper 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 | departmental bulletin paper | |||||||||
| 著者 |
OKAMOTO, J.
× OKAMOTO, J.
× KIMURA, H.
|
|||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | In order to discuss the mechanism of maintaining an excess concentration of vacancies for a long time during the low-temperature aging of Al-Cu alloys, the activation energy of copper diffusion during the slow reaction is determined from the activation energy of aging with an alloy of Al-4%Cu. The activation energy for copper diffusion is found to increase from that for the fast reaction (0.5 eV) to 1eV with aging time. Excess concentration of vacancies in equilibrium with small dislocation loops or voids is found to be the most likely mechanism. It is calculated that dislocation loops of about 18 A in radius exist with a density of 7×10^<16> cm^<-3>. The atomic fraction of vacancies in these loops is 1.3×10^<-4>. Concentration of vacancies during the slow reaction is estimated from the loop size to be 2×10^<-7>, which reasonably ensures the diffusion of copper atoms during slow reaction. | |||||||||
| 書誌情報 |
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 巻 22, p. 172-172, 発行日 1970 |
|||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 00408808 | |||||||||
| 書誌レコードID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA00836167 | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | application/pdf | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 出版者 | ||||||||||
| 出版者 | Tohoku University | |||||||||
| 資源タイプ | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 紀要類(bulletin) | |||||||||
| 登録日 | ||||||||||
| 日付 | 2008-05-02 | |||||||||
| 日付タイプ | Created | |||||||||
| 公開日（投稿完了日） | ||||||||||
| 日付 | 2008-05-02 | |||||||||
| 日付タイプ | Created | |||||||||
| 発行日 | ||||||||||
| 日付 | 1970 | |||||||||
| 日付タイプ | Created | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 35626 bytes | |||||||||
| 更新日 | ||||||||||
| 日付 | 2010-01-27 | |||||||||
| 日付タイプ | Created | |||||||||
Share
Cite as
OKAMOTO, J., KIMURA, H., 1970, Excess Vacancies and the Mechanism of the Slow Reaction in Aluminum-4% Copper Alloy: Tohoku University, 172–172 p.
Loading...
